Auto merge of rust-lang#149704 - matthiaskrgr:rollup-u4zhw99, r=matthiaskrgr

Rollup of 5 pull requests

Successful merges:

 - rust-lang#146826 (Implement `Allocator` for `&mut A` where `A: Allocator + ?Sized`)
 - rust-lang#148487 (add Option::into_flat_iter)
 - rust-lang#148814 (stabilize `array_windows`)
 - rust-lang#149401 (Fix `name()` functions for local defs in rustc_public)
 - rust-lang#149683 (Fix armv8r-none-eabihf tier)

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

Author: bors

compiler/rustc_public/src/lib.rs

@@ -178,7 +178,7 @@ impl CrateItem {
     pub fn emit_mir<W: io::Write>(&self, w: &mut W) -> io::Result<()> {
         self.body()
             .ok_or_else(|| io::Error::other(format!("No body found for `{}`", self.name())))?
-            .dump(w, &self.name())
+            .dump(w, &self.trimmed_name())
     }
 }
 

compiler/rustc_public/src/mir/pretty.rs

@@ -412,7 +412,7 @@ fn pretty_aggregate<W: Write>(
         }
         AggregateKind::Adt(def, var, _, _, _) => {
             if def.kind() == AdtKind::Enum {
-                write!(writer, "{}::{}", def.name(), def.variant(*var).unwrap().name())?;
+                write!(writer, "{}::{}", def.trimmed_name(), def.variant(*var).unwrap().name())?;
             } else {
                 write!(writer, "{}", def.variant(*var).unwrap().name())?;
             }

compiler/rustc_public/src/ty.rs

@@ -876,6 +876,9 @@ pub struct VariantDef {
 }
 
 impl VariantDef {
+    /// The name of the variant, struct or union.
+    ///
+    /// This will not include the name of the enum or qualified path.
     pub fn name(&self) -> Symbol {
         with(|cx| cx.variant_name(*self))
     }