Rollup merge of #83980 - pierwill:fix-compiler-librustc-names, r=davidtwco

Fix outdated crate names in compiler docs

Changes `librustc_X` to `rustc_X`, only in documentation comments.
Plain code comments are left unchanged.

compiler/rustc_middle/src/ich/impls_syntax.rs

@@ -1,5 +1,5 @@
 //! This module contains `HashStable` implementations for various data types
-//! from librustc_ast in no particular order.
+//! from `rustc_ast` in no particular order.
 
 use crate::ich::StableHashingContext;
 

compiler/rustc_middle/src/mir/interpret/error.rs

@@ -46,7 +46,7 @@ static_assert_size!(InterpErrorInfo<'_>, 8);
 /// Packages the kind of error we got from the const code interpreter
 /// up with a Rust-level backtrace of where the error occurred.
 /// Thsese should always be constructed by calling `.into()` on
-/// a `InterpError`. In `librustc_mir::interpret`, we have `throw_err_*`
+/// a `InterpError`. In `rustc_mir::interpret`, we have `throw_err_*`
 /// macros for this.
 #[derive(Debug)]
 pub struct InterpErrorInfo<'tcx>(Box<InterpErrorInfoInner<'tcx>>);

compiler/rustc_middle/src/traits/query.rs

@@ -3,7 +3,7 @@
 //! which makes a canonical query by replacing unbound inference
 //! variables and regions, so that results can be reused more broadly.
 //! The providers for the queries defined here can be found in
-//! `librustc_traits`.
+//! `rustc_traits`.
 
 use crate::ich::StableHashingContext;
 use crate::infer::canonical::{Canonical, QueryResponse};

compiler/rustc_middle/src/ty/fold.rs

@@ -44,7 +44,7 @@ use std::ops::ControlFlow;
 /// This trait is implemented for every type that can be folded.
 /// Basically, every type that has a corresponding method in `TypeFolder`.
 ///
-/// To implement this conveniently, use the derive macro located in librustc_macros.
+/// To implement this conveniently, use the derive macro located in `rustc_macros`.
 pub trait TypeFoldable<'tcx>: fmt::Debug + Clone {
     fn super_fold_with<F: TypeFolder<'tcx>>(self, folder: &mut F) -> Self;
     fn fold_with<F: TypeFolder<'tcx>>(self, folder: &mut F) -> Self {

compiler/rustc_middle/src/ty/sty.rs

@@ -80,7 +80,7 @@ impl BoundRegionKind {
 /// Defines the kinds of types.
 ///
 /// N.B., if you change this, you'll probably want to change the corresponding
-/// AST structure in `librustc_ast/ast.rs` as well.
+/// AST structure in `rustc_ast/src/ast.rs` as well.
 #[derive(Clone, PartialEq, Eq, PartialOrd, Ord, Hash, TyEncodable, TyDecodable, Debug)]
 #[derive(HashStable)]
 #[rustc_diagnostic_item = "TyKind"]
@@ -2116,7 +2116,7 @@ impl<'tcx> TyS<'tcx> {
     ///
     /// Note that during type checking, we use an inference variable
     /// to represent the closure kind, because it has not yet been
-    /// inferred. Once upvar inference (in `src/librustc_typeck/check/upvar.rs`)
+    /// inferred. Once upvar inference (in `rustc_typeck/src/check/upvar.rs`)
     /// is complete, that type variable will be unified.
     pub fn to_opt_closure_kind(&self) -> Option<ty::ClosureKind> {
         match self.kind() {