Auto merge of rust-lang#110390 - fee1-dead-contrib:rollup-kh2ov9r, r=fee1-dead

Rollup of 3 pull requests

Successful merges:

 - rust-lang#110376 (Convert comment to doc comment on `Interner::get`.)
 - rust-lang#110379 (Update some ignored tests.)
 - rust-lang#110387 (Don't `use rustc_hir as ast`(!))

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup

Author: bors

compiler/rustc_middle/src/ty/relate.rs

@@ -7,7 +7,7 @@
 use crate::ty::error::{ExpectedFound, TypeError};
 use crate::ty::{self, Expr, ImplSubject, Term, TermKind, Ty, TyCtxt, TypeFoldable};
 use crate::ty::{GenericArg, GenericArgKind, SubstsRef};
-use rustc_hir as ast;
+use rustc_hir as hir;
 use rustc_hir::def_id::DefId;
 use rustc_target::spec::abi;
 use std::iter;
@@ -123,8 +123,8 @@ pub fn relate_type_and_mut<'tcx, R: TypeRelation<'tcx>>(
     } else {
         let mutbl = a.mutbl;
         let (variance, info) = match mutbl {
-            ast::Mutability::Not => (ty::Covariant, ty::VarianceDiagInfo::None),
-            ast::Mutability::Mut => {
+            hir::Mutability::Not => (ty::Covariant, ty::VarianceDiagInfo::None),
+            hir::Mutability::Mut => {
                 (ty::Invariant, ty::VarianceDiagInfo::Invariant { ty: base_ty, param_index: 0 })
             }
         };
@@ -239,12 +239,12 @@ impl<'tcx> Relate<'tcx> for ty::BoundConstness {
     }
 }
 
-impl<'tcx> Relate<'tcx> for ast::Unsafety {
+impl<'tcx> Relate<'tcx> for hir::Unsafety {
     fn relate<R: TypeRelation<'tcx>>(
         relation: &mut R,
-        a: ast::Unsafety,
-        b: ast::Unsafety,
-    ) -> RelateResult<'tcx, ast::Unsafety> {
+        a: hir::Unsafety,
+        b: hir::Unsafety,
+    ) -> RelateResult<'tcx, hir::Unsafety> {
         if a != b {
             Err(TypeError::UnsafetyMismatch(expected_found(relation, a, b)))
         } else {

compiler/rustc_span/src/symbol.rs

@@ -1986,8 +1986,9 @@ impl Interner {
         name
     }
 
-    // Get the symbol as a string. `Symbol::as_str()` should be used in
-    // preference to this function.
+    /// Get the symbol as a string.
+    ///
+    /// [`Symbol::as_str()`] should be used in preference to this function.
     fn get(&self, symbol: Symbol) -> &str {
         self.0.lock().strings[symbol.0.as_usize()]
     }

tests/mir-opt/simplify_arm.rs

@@ -6,8 +6,7 @@
 // EMIT_MIR simplify_arm.id_try.SimplifyArmIdentity.diff
 // EMIT_MIR simplify_arm.id_try.SimplifyBranchSame.diff
 
-// This pass is broken since deaggregation changed
-// ignore-test
+// ignore-test This pass is broken since deaggregation changed
 
 fn id(o: Option<u8>) -> Option<u8> {
     match o {

tests/mir-opt/simplify_arm_identity.rs

@@ -4,8 +4,7 @@
 // compile-flags: -Zmir-opt-level=3
 // EMIT_MIR_FOR_EACH_BIT_WIDTH
 
-// This pass is broken since deaggregation changed
-// ignore-test
+// ignore-test This pass is broken since deaggregation changed
 
 enum Src {
     Foo(u8),

tests/ui/borrowck/move-error-snippets-ext.rs

@@ -1,4 +1,4 @@
-// ignore-test
+// ignore-test (auxiliary, used by other tests)
 
 macro_rules! aaa {
     ($c:ident) => {{

tests/ui/codemap_tests/two_files_data.rs

@@ -1,4 +1,4 @@
-// ignore-test
+// ignore-test (auxiliary, used by other tests)
 
 trait Foo { }
 

tests/ui/conditional-compilation/module_with_cfg.rs

@@ -1,3 +1,3 @@
-// ignore-test
+// ignore-test (auxiliary, used by other tests)
 
 #![cfg_attr(all(), cfg(FALSE))]

tests/ui/cross/cross-file-errors/main.stderr

@@ -1,5 +1,5 @@
 error: in expressions, `_` can only be used on the left-hand side of an assignment
-  --> $DIR/underscore.rs:8:9
+  --> $DIR/underscore.rs:6:9
    |
 LL |         _
    |         ^ `_` not allowed here

tests/ui/cross/cross-file-errors/underscore.rs

@@ -1,6 +1,4 @@
-// We want this file only so we can test cross-file error
-// messages, but we don't want it in an external crate.
-// ignore-test
+// ignore-test (auxiliary, used by other tests)
 #![crate_type = "lib"]
 
 macro_rules! underscore {

tests/ui/inline-const/const-match-pat-lifetime-err.rs

@@ -1,4 +1,4 @@
-// ignore-test
+// ignore-test (This is currently broken)
 
 #![allow(incomplete_features)]
 #![feature(const_mut_refs)]