Update imports and rustup

CONTRIBUTING.md

@@ -185,7 +185,7 @@ It's worth noting that the majority of `clippy_lints/src/lib.rs` is autogenerate
 ```rust
 // ./clippy_lints/src/else_if_without_else.rs
 
-use rustc::lint::*;
+use rustc::lint::{EarlyLintPass, LintArray, LintPass};
 
 // ...
 

clippy_lints/src/approx_const.rs

@@ -1,6 +1,6 @@
 use crate::utils::span_lint;
 use rustc::hir::*;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use std::f64::consts as f64;
 use syntax::ast::{FloatTy, Lit, LitKind};

clippy_lints/src/arithmetic.rs

@@ -1,6 +1,6 @@
 use crate::utils::span_lint;
 use rustc::hir;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use syntax::source_map::Span;
 

clippy_lints/src/assign_ops.rs

@@ -2,7 +2,7 @@ use crate::utils::{get_trait_def_id, implements_trait, snippet_opt, span_lint_an
 use crate::utils::{higher, sugg};
 use rustc::hir;
 use rustc::hir::intravisit::{walk_expr, NestedVisitorMap, Visitor};
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use syntax::ast;
@@ -133,7 +133,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for AssignOps {
                                         // the crate node is the only one that is not in the map
                                         if_chain! {
                                             if parent_impl != ast::CRATE_NODE_ID;
-                                            if let hir::map::Node::NodeItem(item) = cx.tcx.hir.get(parent_impl);
+                                            if let hir::Node::Item(item) = cx.tcx.hir.get(parent_impl);
                                             if let hir::ItemKind::Impl(_, _, _, _, Some(ref trait_ref), _, _) =
                                                 item.node;
                                             if trait_ref.path.def.def_id() == trait_id;

clippy_lints/src/attrs.rs

@@ -6,7 +6,7 @@ use crate::utils::{
     without_block_comments,
 };
 use rustc::hir::*;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use rustc::ty::{self, TyCtxt};

clippy_lints/src/bit_mask.rs

@@ -1,5 +1,5 @@
 use rustc::hir::*;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use syntax::ast::LitKind;

clippy_lints/src/blacklisted_name.rs

@@ -1,4 +1,4 @@
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use rustc::hir::*;
 use crate::utils::span_lint;

clippy_lints/src/bytecount.rs

@@ -1,5 +1,5 @@
 use rustc::hir::*;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use rustc::ty;

clippy_lints/src/collapsible_if.rs

@@ -12,7 +12,7 @@
 //!
 //! This lint is **warn** by default
 
-use rustc::lint::*;
+use rustc::lint::{EarlyContext, EarlyLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use syntax::ast;

clippy_lints/src/copies.rs

@@ -1,4 +1,4 @@
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use rustc::ty::Ty;
 use rustc::hir::*;

clippy_lints/src/copy_iterator.rs

@@ -1,6 +1,6 @@
 use crate::utils::{is_copy, match_path, paths, span_note_and_lint};
 use rustc::hir::{Item, ItemKind};
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 
 /// **What it does:** Checks for types that implement `Copy` as well as

clippy_lints/src/cyclomatic_complexity.rs

@@ -1,7 +1,7 @@
 //! calculate cyclomatic complexity and warn about overly complex functions
 
 use rustc::cfg::CFG;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass, LintContext};
 use rustc::{declare_lint, lint_array};
 use rustc::hir::*;
 use rustc::ty;

clippy_lints/src/default_trait_access.rs

@@ -1,5 +1,5 @@
 use rustc::hir::*;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use rustc::ty::TyKind;

clippy_lints/src/derive.rs

@@ -1,4 +1,4 @@
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use rustc::ty::{self, Ty};

clippy_lints/src/doc.rs

@@ -1,6 +1,6 @@
 use itertools::Itertools;
 use pulldown_cmark;
-use rustc::lint::*;
+use rustc::lint::{EarlyContext, EarlyLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use syntax::ast;
 use syntax::source_map::{BytePos, Span};

clippy_lints/src/double_comparison.rs

@@ -1,7 +1,7 @@
 //! Lint on unnecessary double comparisons. Some examples:
 
 use rustc::hir::*;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use syntax::source_map::Span;
 

clippy_lints/src/drop_forget_ref.rs

@@ -1,4 +1,4 @@
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use rustc::ty;

clippy_lints/src/duration_subsec.rs

@@ -1,5 +1,5 @@
 use rustc::hir::*;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use syntax::source_map::Spanned;

clippy_lints/src/else_if_without_else.rs

@@ -1,6 +1,6 @@
 //! lint on if expressions with an else if, but without a final else branch
 
-use rustc::lint::*;
+use rustc::lint::{EarlyContext, EarlyLintPass, LintArray, LintPass, in_external_macro, LintContext};
 use rustc::{declare_lint, lint_array};
 use syntax::ast::*;
 

clippy_lints/src/empty_enum.rs

@@ -1,6 +1,6 @@
 //! lint when there is an enum with no variants
 
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use rustc::hir::*;
 use crate::utils::span_lint_and_then;

clippy_lints/src/entry.rs

@@ -1,6 +1,6 @@
 use rustc::hir::*;
 use rustc::hir::intravisit::{walk_expr, NestedVisitorMap, Visitor};
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use syntax::source_map::Span;

clippy_lints/src/enum_clike.rs

@@ -1,7 +1,7 @@
 //! lint on C-like enums that are `repr(isize/usize)` and have values that
 //! don't fit into an `i32`
 
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use rustc::hir::*;
 use rustc::ty;

clippy_lints/src/enum_variants.rs

@@ -1,6 +1,6 @@
 //! lint on enum variants that are prefixed or suffixed by the same characters
 
-use rustc::lint::*;
+use rustc::lint::{EarlyContext, EarlyLintPass, LintArray, LintPass, Lint};
 use rustc::{declare_lint, lint_array};
 use syntax::ast::*;
 use syntax::source_map::Span;

clippy_lints/src/eq_op.rs

@@ -1,5 +1,5 @@
 use rustc::hir::*;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use crate::utils::{in_macro, implements_trait, is_copy, multispan_sugg, snippet, span_lint, span_lint_and_then, SpanlessEq};
 

clippy_lints/src/erasing_op.rs

@@ -1,6 +1,6 @@
 use crate::consts::{constant_simple, Constant};
 use rustc::hir::*;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use syntax::source_map::Span;
 use crate::utils::{in_macro, span_lint};

clippy_lints/src/escape.rs

@@ -1,7 +1,6 @@
 use rustc::hir::*;
 use rustc::hir::intravisit as visit;
-use rustc::hir::map::Node::{NodeExpr, NodeStmt};
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
-use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
 use rustc::middle::expr_use_visitor::*;
 use rustc::middle::mem_categorization::{cmt_, Categorization};
@@ -100,7 +99,7 @@ impl<'a, 'tcx> Delegate<'tcx> for EscapeDelegate<'a, 'tcx> {
         let map = &self.cx.tcx.hir;
         if map.is_argument(consume_pat.id) {
             // Skip closure arguments
-            if let Some(NodeExpr(..)) = map.find(map.get_parent_node(consume_pat.id)) {
+            if let Some(Node::Expr(..)) = map.find(map.get_parent_node(consume_pat.id)) {
                 return;
             }
             if is_non_trait_box(cmt.ty) && !self.is_large_box(cmt.ty) {
@@ -110,7 +109,7 @@ impl<'a, 'tcx> Delegate<'tcx> for EscapeDelegate<'a, 'tcx> {
         }
         if let Categorization::Rvalue(..) = cmt.cat {
             let id = map.hir_to_node_id(cmt.hir_id);
-            if let Some(NodeStmt(st)) = map.find(map.get_parent_node(id)) {
+            if let Some(Node::Stmt(st)) = map.find(map.get_parent_node(id)) {
                 if let StmtKind::Decl(ref decl, _) = st.node {
                     if let DeclKind::Local(ref loc) = decl.node {
                         if let Some(ref ex) = loc.init {

clippy_lints/src/eta_reduction.rs

@@ -1,4 +1,4 @@
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use rustc::ty;
 use rustc::hir::*;

clippy_lints/src/eval_order_dependence.rs

@@ -1,7 +1,7 @@
 use rustc::hir::intravisit::{walk_expr, NestedVisitorMap, Visitor};
 use rustc::hir::*;
 use rustc::ty;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use syntax::ast;
@@ -189,9 +189,9 @@ fn check_for_unsequenced_reads(vis: &mut ReadVisitor<'_, '_>) {
         };
 
         let stop_early = match parent_node {
-            map::Node::NodeExpr(expr) => check_expr(vis, expr),
+            Node::Expr(expr) => check_expr(vis, expr),
-            map::Node::NodeStmt(stmt) => check_stmt(vis, stmt),
+            Node::Stmt(stmt) => check_stmt(vis, stmt),
-            map::Node::NodeItem(_) => {
+            Node::Item(_) => {
                 // We reached the top of the function, stop.
                 break;
             },

clippy_lints/src/excessive_precision.rs

@@ -1,5 +1,5 @@
 use rustc::hir;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use rustc::ty::TyKind;

clippy_lints/src/explicit_write.rs

@@ -1,5 +1,5 @@
 use rustc::hir::*;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use crate::utils::{is_expn_of, match_def_path, resolve_node, span_lint};

clippy_lints/src/fallible_impl_from.rs

@@ -1,4 +1,4 @@
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use rustc::hir;

clippy_lints/src/format.rs

@@ -1,5 +1,5 @@
 use rustc::hir::*;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use rustc::ty;

clippy_lints/src/formatting.rs

@@ -1,4 +1,4 @@
-use rustc::lint::*;
+use rustc::lint::{EarlyContext, EarlyLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use syntax::ast;
 use crate::utils::{differing_macro_contexts, in_macro, snippet_opt, span_note_and_lint};

clippy_lints/src/functions.rs

@@ -1,7 +1,7 @@
 use matches::matches;
 use rustc::hir::intravisit;
 use rustc::hir;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use rustc::ty;
 use rustc::hir::def::Def;
@@ -85,9 +85,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for Functions {
         span: Span,
         nodeid: ast::NodeId,
     ) {
-        use rustc::hir::map::Node::*;
+        let is_impl = if let Some(hir::Node::Item(item)) = cx.tcx.hir.find(cx.tcx.hir.get_parent_node(nodeid)) {
-
-        let is_impl = if let Some(NodeItem(item)) = cx.tcx.hir.find(cx.tcx.hir.get_parent_node(nodeid)) {
             matches!(item.node, hir::ItemKind::Impl(_, _, _, _, Some(_), _, _))
         } else {
             false

clippy_lints/src/identity_conversion.rs

@@ -1,4 +1,4 @@
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use rustc::hir::*;
 use syntax::ast::NodeId;

clippy_lints/src/identity_op.rs

@@ -1,6 +1,6 @@
 use crate::consts::{constant_simple, Constant};
 use rustc::hir::*;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use syntax::source_map::Span;
 use crate::utils::{in_macro, snippet, span_lint, unsext, clip};

clippy_lints/src/if_let_redundant_pattern_matching.rs

@@ -1,4 +1,4 @@
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use rustc::hir::*;
 use crate::utils::{match_qpath, paths, snippet, span_lint_and_then};

clippy_lints/src/if_not_else.rs

@@ -1,7 +1,7 @@
 //! lint on if branches that could be swapped so no `!` operation is necessary
 //! on the condition
 
-use rustc::lint::*;
+use rustc::lint::{EarlyContext, EarlyLintPass, LintArray, LintPass, in_external_macro, LintContext};
 use rustc::{declare_lint, lint_array};
 use syntax::ast::*;
 

clippy_lints/src/indexing_slicing.rs

@@ -5,7 +5,7 @@ use crate::utils;
 use crate::utils::higher;
 use crate::utils::higher::Range;
 use rustc::hir::*;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use rustc::ty;
 use syntax::ast::RangeLimits;

clippy_lints/src/infallible_destructuring_match.rs

@@ -1,6 +1,6 @@
 use super::utils::{get_arg_name, match_var, remove_blocks, snippet, span_lint_and_sugg};
 use rustc::hir::*;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 

clippy_lints/src/infinite_iter.rs

@@ -1,5 +1,5 @@
 use rustc::hir::*;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use crate::utils::{get_trait_def_id, higher, implements_trait, match_qpath, paths, span_lint};
 

clippy_lints/src/inherent_impl.rs

@@ -1,11 +1,12 @@
 //! lint on inherent implementations
 
 use rustc::hir::*;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use std::collections::HashMap;
 use std::default::Default;
 use syntax_pos::Span;
+use crate::utils::span_lint_and_then;
 
 /// **What it does:** Checks for multiple inherent implementations of a struct
 ///
@@ -81,12 +82,17 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for Pass {
                     .map(|(span, _)| span);
                 if let Some(initial_span) = impl_spans.nth(0) {
                     impl_spans.for_each(|additional_span| {
-                        cx.span_lint_note(
+                        span_lint_and_then(
+                            cx,
                             MULTIPLE_INHERENT_IMPL,
                             *additional_span,
                             "Multiple implementations of this structure",
-                            *initial_span,
+                            |db| {
-                            "First implementation here",
+                                db.span_note(
+                                    *initial_span,
+                                    "First implementation here",
+                                );
+                            },
                         )
                     })
                 }

clippy_lints/src/inline_fn_without_body.rs

@@ -1,6 +1,6 @@
 //! checks for `#[inline]` on trait methods without bodies
 
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use rustc::hir::*;
 use syntax::ast::{Attribute, Name};

clippy_lints/src/int_plus_one.rs

@@ -1,6 +1,6 @@
 //! lint on blocks unnecessarily using >= with a + 1 or - 1
 
-use rustc::lint::*;
+use rustc::lint::{EarlyContext, EarlyLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use syntax::ast::*;
 

clippy_lints/src/invalid_ref.rs

@@ -1,4 +1,4 @@
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use rustc::ty;

clippy_lints/src/items_after_statements.rs

@@ -1,7 +1,7 @@
 //! lint when items are used after statements
 
 use matches::matches;
-use rustc::lint::*;
+use rustc::lint::{EarlyContext, EarlyLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use syntax::ast::*;
 use crate::utils::{in_macro, span_lint};

clippy_lints/src/large_enum_variant.rs

@@ -1,6 +1,6 @@
 //! lint when there is a large size difference between variants on an enum
 
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use rustc::hir::*;
 use crate::utils::{snippet_opt, span_lint_and_then};

clippy_lints/src/len_zero.rs

@@ -1,6 +1,6 @@
 use rustc::hir::def_id::DefId;
 use rustc::hir::*;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use rustc::ty;
 use std::collections::HashSet;

clippy_lints/src/let_if_seq.rs

@@ -1,4 +1,4 @@
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use rustc::hir;

clippy_lints/src/lifetimes.rs

@@ -1,6 +1,6 @@
 use crate::reexport::*;
 use matches::matches;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass, in_external_macro, LintContext};
 use rustc::{declare_lint, lint_array};
 use rustc::hir::def::Def;
 use rustc::hir::*;

clippy_lints/src/literal_representation.rs

@@ -1,7 +1,7 @@
 //! Lints concerned with the grouping of digits with underscores in integral or
 //! floating-point literal expressions.
 
-use rustc::lint::*;
+use rustc::lint::{EarlyContext, EarlyLintPass, LintArray, LintPass, in_external_macro, LintContext};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use syntax::ast::*;

clippy_lints/src/loops.rs

@@ -4,8 +4,7 @@ use rustc::hir::*;
 use rustc::hir::def::Def;
 use rustc::hir::def_id;
 use rustc::hir::intravisit::{walk_block, walk_decl, walk_expr, walk_pat, walk_stmt, NestedVisitorMap, Visitor};
-use rustc::hir::map::Node::{NodeBlock, NodeExpr, NodeStmt};
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass, in_external_macro, LintContext};
-use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use rustc::middle::region;
@@ -1330,7 +1329,7 @@ fn check_for_loop_explicit_counter<'a, 'tcx>(
     let parent_scope = map.get_enclosing_scope(expr.id)
         .and_then(|id| map.get_enclosing_scope(id));
     if let Some(parent_id) = parent_scope {
-        if let NodeBlock(block) = map.get(parent_id) {
+        if let Node::Block(block) = map.get(parent_id) {
             for (id, _) in visitor
                 .states
                 .iter()
@@ -1506,7 +1505,7 @@ fn check_for_mutability(cx: &LateContext<'_, '_>, bound: &Expr) -> Option<NodeId
             if let Def::Local(node_id) = def {
                 let node_str = cx.tcx.hir.get(node_id);
                 if_chain! {
-                    if let map::Node::NodeBinding(pat) = node_str;
+                    if let Node::Binding(pat) = node_str;
                     if let PatKind::Binding(bind_ann, _, _, _) = pat.node;
                     if let BindingAnnotation::Mutable = bind_ann;
                     then {
@@ -2047,7 +2046,7 @@ fn is_conditional(expr: &Expr) -> bool {
 fn is_nested(cx: &LateContext<'_, '_>, match_expr: &Expr, iter_expr: &Expr) -> bool {
     if_chain! {
         if let Some(loop_block) = get_enclosing_block(cx, match_expr.id);
-        if let Some(map::Node::NodeExpr(loop_expr)) = cx.tcx.hir.find(cx.tcx.hir.get_parent_node(loop_block.id));
+        if let Some(Node::Expr(loop_expr)) = cx.tcx.hir.find(cx.tcx.hir.get_parent_node(loop_block.id));
         then {
             return is_loop_nested(cx, loop_expr, iter_expr)
         }
@@ -2068,13 +2067,13 @@ fn is_loop_nested(cx: &LateContext<'_, '_>, loop_expr: &Expr, iter_expr: &Expr)
             return false;
         }
         match cx.tcx.hir.find(parent) {
-            Some(NodeExpr(expr)) => match expr.node {
+            Some(Node::Expr(expr)) => match expr.node {
                 ExprKind::Loop(..) | ExprKind::While(..) => {
                     return true;
                 },
                 _ => (),
             },
-            Some(NodeBlock(block)) => {
+            Some(Node::Block(block)) => {
                 let mut block_visitor = LoopNestVisitor {
                     id,
                     iterator: iter_name,
@@ -2085,7 +2084,7 @@ fn is_loop_nested(cx: &LateContext<'_, '_>, loop_expr: &Expr, iter_expr: &Expr)
                     return false;
                 }
             },
-            Some(NodeStmt(_)) => (),
+            Some(Node::Stmt(_)) => (),
             _ => {
                 return false;
             },

clippy_lints/src/map_clone.rs

@@ -1,4 +1,4 @@
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use rustc::hir::*;

clippy_lints/src/map_unit_fn.rs

@@ -1,5 +1,5 @@
 use rustc::hir;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use rustc::ty;

clippy_lints/src/matches.rs

@@ -1,5 +1,5 @@
 use rustc::hir::*;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass, in_external_macro, LintContext};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use rustc::ty::{self, Ty};

clippy_lints/src/mem_forget.rs

@@ -1,4 +1,4 @@
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use rustc::hir::{Expr, ExprKind};
 use crate::utils::{match_def_path, opt_def_id, paths, span_lint};

clippy_lints/src/methods.rs

@@ -1,6 +1,6 @@
 use matches::matches;
 use rustc::hir;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass, in_external_macro, Lint, LintContext};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use rustc::ty::{self, Ty};
@@ -1145,14 +1145,14 @@ fn lint_clone_on_copy(cx: &LateContext<'_, '_>, expr: &hir::Expr, arg: &hir::Exp
             if let ty::Ref(..) = cx.tables.expr_ty(arg).sty {
                 let parent = cx.tcx.hir.get_parent_node(expr.id);
                 match cx.tcx.hir.get(parent) {
-                    hir::map::NodeExpr(parent) => match parent.node {
+                    hir::Node::Expr(parent) => match parent.node {
                         // &*x is a nop, &x.clone() is not
                         hir::ExprKind::AddrOf(..) |
                         // (*x).func() is useless, x.clone().func() can work in case func borrows mutably
                         hir::ExprKind::MethodCall(..) => return,
                         _ => {},
                     }
-                    hir::map::NodeStmt(stmt) => {
+                    hir::Node::Stmt(stmt) => {
                         if let hir::StmtKind::Decl(ref decl, _) = stmt.node {
                             if let hir::DeclKind::Local(ref loc) = decl.node {
                                 if let hir::PatKind::Ref(..) = loc.pat.node {

clippy_lints/src/minmax.rs

@@ -1,7 +1,7 @@
 use crate::consts::{constant_simple, Constant};
 use crate::utils::{match_def_path, opt_def_id, paths, span_lint};
 use rustc::hir::*;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use std::cmp::Ordering;
 

clippy_lints/src/misc.rs

@@ -2,7 +2,7 @@ use crate::reexport::*;
 use matches::matches;
 use rustc::hir::*;
 use rustc::hir::intravisit::FnKind;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use rustc::ty;
@@ -522,7 +522,7 @@ fn check_to_owned(cx: &LateContext<'_, '_>, expr: &Expr, other: &Expr) {
             let parent_fn = cx.tcx.hir.get_parent(expr.id);
             let parent_impl = cx.tcx.hir.get_parent(parent_fn);
             if parent_impl != CRATE_NODE_ID {
-                if let map::NodeItem(item) = cx.tcx.hir.get(parent_impl) {
+                if let Node::Item(item) = cx.tcx.hir.get(parent_impl) {
                     if let ItemKind::Impl(.., Some(ref trait_ref), _, _) = item.node {
                         if trait_ref.path.def.def_id() == partial_eq_trait_id {
                             // we are implementing PartialEq, don't suggest not doing `to_owned`, otherwise

clippy_lints/src/misc_early.rs

@@ -1,4 +1,4 @@
-use rustc::lint::*;
+use rustc::lint::{EarlyContext, EarlyLintPass, LintArray, LintPass, LintContext, in_external_macro};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use std::collections::HashMap;

clippy_lints/src/missing_doc.rs

@@ -19,13 +19,13 @@
 //
 
 use rustc::hir;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass, LintContext};
 use rustc::{declare_lint, lint_array};
 use rustc::ty;
 use syntax::ast;
 use syntax::attr;
 use syntax::source_map::Span;
-use crate::utils::in_macro;
+use crate::utils::{span_lint, in_macro};
 
 /// **What it does:** Warns if there is missing doc for any documentable item
 /// (public or private).
@@ -87,7 +87,8 @@ impl MissingDoc {
             .iter()
             .any(|a| a.is_value_str() && a.name() == "doc");
         if !has_doc {
-            cx.span_lint(
+            span_lint(
+                cx,
                 MISSING_DOCS_IN_PRIVATE_ITEMS,
                 sp,
                 &format!("missing documentation for {}", desc),

clippy_lints/src/missing_inline.rs

@@ -10,10 +10,11 @@
 //
 
 use rustc::hir;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use syntax::ast;
 use syntax::source_map::Span;
+use crate::utils::span_lint;
 
 /// **What it does:** it lints if an exported function, method, trait method with default impl,
 /// or trait method impl is not `#[inline]`.
@@ -74,7 +75,8 @@ fn check_missing_inline_attrs(cx: &LateContext<'_, '_>,
         .iter()
         .any(|a| a.name() == "inline" );
     if !has_inline {
-        cx.span_lint(
+        span_lint(
+            cx,
             MISSING_INLINE_IN_PUBLIC_ITEMS,
             sp,
             &format!("missing `#[inline]` for {}", desc),

clippy_lints/src/multiple_crate_versions.rs

@@ -1,8 +1,9 @@
 //! lint on multiple versions of a crate being used
 
-use rustc::lint::*;
+use rustc::lint::{EarlyContext, EarlyLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use syntax::ast::*;
+use crate::utils::span_lint;
 
 use cargo_metadata;
 use itertools::Itertools;
@@ -43,7 +44,8 @@ impl EarlyLintPass for Pass {
         let metadata = match cargo_metadata::metadata_deps(None, true) {
             Ok(metadata) => metadata,
             Err(_) => {
-                cx.span_lint(
+                span_lint(
+                    cx,
                     MULTIPLE_CRATE_VERSIONS,
                     krate.span,
                     "could not read cargo metadata"
@@ -62,7 +64,8 @@ impl EarlyLintPass for Pass {
             if group.len() > 1 {
                 let versions = group.into_iter().map(|p| p.version).join(", ");
 
-                cx.span_lint(
+                span_lint(
+                    cx,
                     MULTIPLE_CRATE_VERSIONS,
                     krate.span,
                     &format!("multiple versions for dependency `{}`: {}", name, versions),

clippy_lints/src/mut_mut.rs

@@ -1,6 +1,6 @@
 use rustc::hir;
 use rustc::hir::intravisit;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass, in_external_macro, LintContext};
 use rustc::{declare_lint, lint_array};
 use rustc::ty;
 use crate::utils::{higher, span_lint};

clippy_lints/src/mut_reference.rs

@@ -1,4 +1,4 @@
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use rustc::ty::{self, Ty};
 use rustc::ty::subst::Subst;

clippy_lints/src/needless_bool.rs

@@ -2,7 +2,7 @@
 //!
 //! This lint is **warn** by default
 
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use rustc::hir::*;
 use syntax::ast::LitKind;

clippy_lints/src/needless_borrow.rs

@@ -2,7 +2,7 @@
 //!
 //! This lint is **warn** by default
 
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use rustc::hir::{BindingAnnotation, Expr, ExprKind, MutImmutable, Pat, PatKind};

clippy_lints/src/needless_borrowed_ref.rs

@@ -2,7 +2,7 @@
 //!
 //! This lint is **warn** by default
 
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use rustc::hir::{BindingAnnotation, MutImmutable, Pat, PatKind};

clippy_lints/src/needless_continue.rs

@@ -27,7 +27,7 @@
 //! ```
 //!
 //! This lint is **warn** by default.
-use rustc::lint::*;
+use rustc::lint::{EarlyContext, EarlyLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use syntax::ast;
 use syntax::source_map::{original_sp, DUMMY_SP};

clippy_lints/src/needless_pass_by_value.rs

@@ -1,8 +1,7 @@
 use matches::matches;
 use rustc::hir::*;
-use rustc::hir::map::*;
 use rustc::hir::intravisit::FnKind;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use rustc::ty::{self, RegionKind, TypeFoldable};
@@ -90,7 +89,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for NeedlessPassByValue {
         }
 
         // Exclude non-inherent impls
-        if let Some(NodeItem(item)) = cx.tcx.hir.find(cx.tcx.hir.get_parent_node(node_id)) {
+        if let Some(Node::Item(item)) = cx.tcx.hir.find(cx.tcx.hir.get_parent_node(node_id)) {
             if matches!(item.node, ItemKind::Impl(_, _, _, _, Some(_), _, _) |
                 ItemKind::Trait(..))
             {
@@ -340,7 +339,7 @@ impl<'a, 'tcx> MovedVariablesCtxt<'a, 'tcx> {
 
                 if let Some(node) = self.cx.tcx.hir.find(id) {
                     match node {
-                        map::Node::NodeExpr(e) => {
+                        Node::Expr(e) => {
                             // `match` and `if let`
                             if let ExprKind::Match(ref c, ..) = e.node {
                                 self.spans_need_deref
@@ -350,7 +349,7 @@ impl<'a, 'tcx> MovedVariablesCtxt<'a, 'tcx> {
                             }
                         },
 
-                        map::Node::NodeStmt(s) => {
+                        Node::Stmt(s) => {
                             // `let <pat> = x;`
                             if_chain! {
                                 if let StmtKind::Decl(ref decl, _) = s.node;

clippy_lints/src/neg_cmp_op_on_partial_ord.rs

@@ -1,5 +1,5 @@
 use rustc::hir::*;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass, in_external_macro, LintContext};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 
@@ -20,7 +20,7 @@ use crate::utils::{self, paths, span_lint};
 ///
 /// ```rust
 /// use std::cmp::Ordering;
-/// 
+///
 /// // Bad
 /// let a = 1.0;
 /// let b = std::f64::NAN;

clippy_lints/src/neg_multiply.rs

@@ -1,5 +1,5 @@
 use rustc::hir::*;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use syntax::source_map::{Span, Spanned};

clippy_lints/src/new_without_default.rs

@@ -1,6 +1,6 @@
 use rustc::hir::def_id::DefId;
 use rustc::hir;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass, in_external_macro, LintContext};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use rustc::ty::{self, Ty};

clippy_lints/src/non_copy_const.rs

@@ -212,7 +212,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for NonCopyConst {
                 if parent_id == cur_expr.id {
                     break;
                 }
-                if let Some(map::NodeExpr(parent_expr)) = cx.tcx.hir.find(parent_id) {
+                if let Some(Node::Expr(parent_expr)) = cx.tcx.hir.find(parent_id) {
                     match &parent_expr.node {
                         ExprKind::AddrOf(..) => {
                             // `&e` => `e` must be referenced

clippy_lints/src/non_expressive_names.rs

@@ -1,4 +1,4 @@
-use rustc::lint::*;
+use rustc::lint::{LintArray, LintPass, EarlyContext, EarlyLintPass};
 use rustc::{declare_lint, lint_array};
 use syntax::source_map::Span;
 use syntax::symbol::LocalInternedString;

clippy_lints/src/ok_if_let.rs

@@ -1,4 +1,4 @@
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use rustc::hir::*;

clippy_lints/src/open_options.rs

@@ -1,5 +1,5 @@
 use rustc::hir::{Expr, ExprKind};
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use syntax::ast::LitKind;
 use syntax::source_map::{Span, Spanned};

clippy_lints/src/overflow_check_conditional.rs

@@ -1,4 +1,4 @@
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use rustc::hir::*;

clippy_lints/src/panic_unimplemented.rs

@@ -1,5 +1,5 @@
 use rustc::hir::*;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use syntax::ast::LitKind;

clippy_lints/src/partialeq_ne_impl.rs

@@ -1,4 +1,4 @@
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use rustc::hir::*;

clippy_lints/src/precedence.rs

@@ -1,4 +1,4 @@
-use rustc::lint::*;
+use rustc::lint::{EarlyContext, EarlyLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use syntax::ast::*;
 use syntax::source_map::Spanned;

clippy_lints/src/ptr.rs

@@ -2,9 +2,8 @@
 
 use std::borrow::Cow;
 use rustc::hir::*;
-use rustc::hir::map::NodeItem;
 use rustc::hir::QPath;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use rustc::ty;
@@ -112,7 +111,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for PointerPass {
 
     fn check_impl_item(&mut self, cx: &LateContext<'a, 'tcx>, item: &'tcx ImplItem) {
         if let ImplItemKind::Method(ref sig, body_id) = item.node {
-            if let Some(NodeItem(it)) = cx.tcx.hir.find(cx.tcx.hir.get_parent(item.id)) {
+            if let Some(Node::Item(it)) = cx.tcx.hir.find(cx.tcx.hir.get_parent(item.id)) {
                 if let ItemKind::Impl(_, _, _, _, Some(_), _, _) = it.node {
                     return; // ignore trait impls
                 }

clippy_lints/src/question_mark.rs

@@ -1,4 +1,4 @@
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use rustc::hir::*;

clippy_lints/src/ranges.rs

@@ -1,4 +1,4 @@
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use rustc::hir::*;

clippy_lints/src/redundant_field_names.rs

@@ -1,4 +1,4 @@
-use rustc::lint::*;
+use rustc::lint::{EarlyContext, EarlyLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use syntax::ast::*;
 use crate::utils::{span_lint_and_sugg};

clippy_lints/src/reference.rs

@@ -1,5 +1,5 @@
 use syntax::ast::{Expr, ExprKind, UnOp};
-use rustc::lint::*;
+use rustc::lint::{EarlyContext, EarlyLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use crate::utils::{snippet, span_lint_and_sugg};

clippy_lints/src/regex.rs

@@ -1,6 +1,6 @@
 use regex_syntax;
 use rustc::hir::*;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use std::collections::HashSet;

clippy_lints/src/replace_consts.rs

@@ -1,4 +1,4 @@
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use rustc::hir;

clippy_lints/src/returns.rs

@@ -1,4 +1,4 @@
-use rustc::lint::*;
+use rustc::lint::{EarlyContext, EarlyLintPass, LintArray, LintPass, in_external_macro, LintContext};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use syntax::ast;

clippy_lints/src/serde_api.rs

@@ -1,4 +1,4 @@
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use rustc::hir::*;
 use crate::utils::{get_trait_def_id, paths, span_lint};

clippy_lints/src/shadow.rs

@@ -1,5 +1,5 @@
 use crate::reexport::*;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass, in_external_macro, LintContext};
 use rustc::{declare_lint, lint_array};
 use rustc::hir::*;
 use rustc::hir::intravisit::FnKind;

clippy_lints/src/strings.rs

@@ -1,5 +1,5 @@
 use rustc::hir::*;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use syntax::source_map::Spanned;
 use crate::utils::SpanlessEq;

clippy_lints/src/suspicious_trait_impl.rs

@@ -1,4 +1,4 @@
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use rustc::hir;
@@ -76,7 +76,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for SuspiciousImpl {
             // as a child node
             let mut parent_expr = cx.tcx.hir.get_parent_node(expr.id);
             while parent_expr != ast::CRATE_NODE_ID {
-                if let hir::map::Node::NodeExpr(e) = cx.tcx.hir.get(parent_expr) {
+                if let hir::Node::Expr(e) = cx.tcx.hir.get(parent_expr) {
                     match e.node {
                         hir::ExprKind::Binary(..)
                         | hir::ExprKind::Unary(hir::UnOp::UnNot, _)
@@ -187,7 +187,7 @@ fn check_binop<'a>(
 
     if_chain! {
         if parent_impl != ast::CRATE_NODE_ID;
-        if let hir::map::Node::NodeItem(item) = cx.tcx.hir.get(parent_impl);
+        if let hir::Node::Item(item) = cx.tcx.hir.get(parent_impl);
         if let hir::ItemKind::Impl(_, _, _, _, Some(ref trait_ref), _, _) = item.node;
         if let Some(idx) = trait_ids.iter().position(|&tid| tid == trait_ref.path.def.def_id());
         if binop != expected_ops[idx];

clippy_lints/src/swap.rs

@@ -1,6 +1,6 @@
 use matches::matches;
 use rustc::hir::*;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use rustc::ty;

clippy_lints/src/transmute.rs

@@ -1,4 +1,4 @@
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use rustc::ty::{self, Ty};

clippy_lints/src/trivially_copy_pass_by_ref.rs

@@ -3,9 +3,8 @@ use std::cmp;
 use matches::matches;
 use rustc::hir;
 use rustc::hir::*;
-use rustc::hir::map::*;
 use rustc::hir::intravisit::FnKind;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use rustc::ty::TyKind;
@@ -109,7 +108,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for TriviallyCopyPassByRef {
         }
 
         // Exclude non-inherent impls
-        if let Some(NodeItem(item)) = cx.tcx.hir.find(cx.tcx.hir.get_parent_node(node_id)) {
+        if let Some(Node::Item(item)) = cx.tcx.hir.find(cx.tcx.hir.get_parent_node(node_id)) {
             if matches!(item.node, ItemKind::Impl(_, _, _, _, Some(_), _, _) |
                 ItemKind::Trait(..))
             {

clippy_lints/src/types.rs

@@ -2,7 +2,7 @@ use crate::reexport::*;
 use rustc::hir;
 use rustc::hir::*;
 use rustc::hir::intravisit::{walk_body, walk_expr, walk_ty, FnKind, NestedVisitorMap, Visitor};
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass, in_external_macro, LintContext};
 use rustc::{declare_lint, lint_array};
 use if_chain::if_chain;
 use rustc::ty::{self, Ty, TyCtxt, TypeckTables};
@@ -140,7 +140,7 @@ impl LintPass for TypePass {
 impl<'a, 'tcx> LateLintPass<'a, 'tcx> for TypePass {
     fn check_fn(&mut self, cx: &LateContext<'_, '_>, _: FnKind<'_>, decl: &FnDecl, _: &Body, _: Span, id: NodeId) {
         // skip trait implementations, see #605
-        if let Some(map::NodeItem(item)) = cx.tcx.hir.find(cx.tcx.hir.get_parent(id)) {
+        if let Some(hir::Node::Item(item)) = cx.tcx.hir.find(cx.tcx.hir.get_parent(id)) {
             if let ItemKind::Impl(_, _, _, _, Some(..), _, _) = item.node {
                 return;
             }
@@ -514,7 +514,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for UnitArg {
                         if !is_questionmark_desugar_marked_call(expr) {
                             if_chain!{
                                 let opt_parent_node = map.find(map.get_parent_node(expr.id));
-                                if let Some(hir::map::NodeExpr(parent_expr)) = opt_parent_node;
+                                if let Some(hir::Node::Expr(parent_expr)) = opt_parent_node;
                                 if is_questionmark_desugar_marked_call(parent_expr);
                                 then {}
                                 else {

clippy_lints/src/unicode.rs

@@ -1,4 +1,4 @@
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use rustc::hir::*;
 use syntax::ast::{LitKind, NodeId};

clippy_lints/src/unsafe_removed_from_name.rs

@@ -1,4 +1,4 @@
-use rustc::lint::*;
+use rustc::lint::{EarlyContext, EarlyLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use syntax::ast::*;
 use syntax::source_map::Span;

clippy_lints/src/unused_io_amount.rs

@@ -1,4 +1,4 @@
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
 use rustc::hir;
 use crate::utils::{is_try, match_qpath, match_trait_method, paths, span_lint};