Remove crate visibility usage in compiler

compiler/rustc_lint/src/builtin.rs

@@ -2705,7 +2705,7 @@ impl SymbolName {
 }
 
 impl ClashingExternDeclarations {
-    crate fn new() -> Self {
+    pub(crate) fn new() -> Self {
         ClashingExternDeclarations { seen_decls: FxHashMap::default() }
     }
     /// Insert a new foreign item into the seen set. If a symbol with the same name already exists

compiler/rustc_lint/src/late.rs

@@ -34,7 +34,7 @@ use tracing::debug;
 
 /// Extract the `LintStore` from the query context.
 /// This function exists because we've erased `LintStore` as `dyn Any` in the context.
-crate fn unerased_lint_store(tcx: TyCtxt<'_>) -> &LintStore {
+pub(crate) fn unerased_lint_store(tcx: TyCtxt<'_>) -> &LintStore {
     let store: &dyn Any = &*tcx.lint_store;
     store.downcast_ref().unwrap()
 }

compiler/rustc_lint/src/lib.rs

@@ -30,7 +30,6 @@
 #![feature(array_windows)]
 #![feature(box_patterns)]
 #![feature(control_flow_enum)]
-#![feature(crate_visibility_modifier)]
 #![feature(if_let_guard)]
 #![feature(iter_intersperse)]
 #![feature(iter_order_by)]

compiler/rustc_lint/src/types.rs

@@ -651,7 +651,7 @@ declare_lint! {
 declare_lint_pass!(ImproperCTypesDefinitions => [IMPROPER_CTYPES_DEFINITIONS]);
 
 #[derive(Clone, Copy)]
-crate enum CItemKind {
+pub(crate) enum CItemKind {
     Declaration,
     Definition,
 }
@@ -667,7 +667,10 @@ enum FfiResult<'tcx> {
     FfiUnsafe { ty: Ty<'tcx>, reason: String, help: Option<String> },
 }
 
-crate fn nonnull_optimization_guaranteed<'tcx>(tcx: TyCtxt<'tcx>, def: ty::AdtDef<'tcx>) -> bool {
+pub(crate) fn nonnull_optimization_guaranteed<'tcx>(
+    tcx: TyCtxt<'tcx>,
+    def: ty::AdtDef<'tcx>,
+) -> bool {
     tcx.has_attr(def.did(), sym::rustc_nonnull_optimization_guaranteed)
 }
 
@@ -766,7 +769,7 @@ fn get_nullable_type<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>) -> Option<Ty<'t
 /// Currently restricted to function pointers, boxes, references, `core::num::NonZero*`,
 /// `core::ptr::NonNull`, and `#[repr(transparent)]` newtypes.
 /// FIXME: This duplicates code in codegen.
-crate fn repr_nullable_ptr<'tcx>(
+pub(crate) fn repr_nullable_ptr<'tcx>(
     cx: &LateContext<'tcx>,
     ty: Ty<'tcx>,
     ckind: CItemKind,