Adding upstream version 1.66.0+dfsg1.upstream/1.66.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 4 insertions, 3 deletions

diff --git a/compiler/rustc_builtin_macros/src/global_allocator.rs b/compiler/rustc_builtin_macros/src/global_allocator.rs
index 36cfbba45..45b9b8ab6 100644
--- a/compiler/rustc_builtin_macros/src/global_allocator.rs
+++ b/compiler/rustc_builtin_macros/src/global_allocator.rs
@@ -4,11 +4,12 @@ use rustc_ast::expand::allocator::{
     AllocatorKind, AllocatorMethod, AllocatorTy, ALLOCATOR_METHODS,
 };
 use rustc_ast::ptr::P;
-use rustc_ast::{self as ast, Attribute, Expr, FnHeader, FnSig, Generics, Param, StmtKind};
+use rustc_ast::{self as ast, AttrVec, Expr, FnHeader, FnSig, Generics, Param, StmtKind};
 use rustc_ast::{Fn, ItemKind, Mutability, Stmt, Ty, TyKind, Unsafe};
 use rustc_expand::base::{Annotatable, ExtCtxt};
 use rustc_span::symbol::{kw, sym, Ident, Symbol};
 use rustc_span::Span;
+use thin_vec::thin_vec;
 
 pub fn expand(
     ecx: &mut ExtCtxt<'_>,
@@ -113,10 +114,10 @@ impl AllocFnFactory<'_, '_> {
         self.cx.expr_call(self.ty_span, method, args)
     }
 
-    fn attrs(&self) -> Vec<Attribute> {
+    fn attrs(&self) -> AttrVec {
         let special = sym::rustc_std_internal_symbol;
         let special = self.cx.meta_word(self.span, special);
-        vec![self.cx.attribute(special)]
+        thin_vec![self.cx.attribute(special)]
     }
 
     fn arg_ty(