Auto merge of #146862 - matthiaskrgr:rollup-1zqootr, r=matthiaskrgr

Rollup of 4 pull requests

Successful merges:

 - rust-lang/rust#143857 (Port #[macro_export] to the new attribute parsing infrastructure)
 - rust-lang/rust#146486 (Improve `core::sync::atomic` coverage)
 - rust-lang/rust#146606 (ci: x86_64-gnu-tools: Add `--test-args` regression test)
 - rust-lang/rust#146639 (std: merge definitions of `StdioPipes`)

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

Author: bors

clippy_lints/src/macro_metavars_in_unsafe.rs

@@ -5,10 +5,12 @@ use itertools::Itertools;
 use rustc_hir::def_id::LocalDefId;
 use rustc_hir::intravisit::{Visitor, walk_block, walk_expr, walk_stmt};
 use rustc_hir::{BlockCheckMode, Expr, ExprKind, HirId, Stmt, UnsafeSource};
+use rustc_hir::attrs::AttributeKind;
+use rustc_hir::find_attr;
 use rustc_lint::{LateContext, LateLintPass, Level, LintContext};
 use rustc_middle::lint::LevelAndSource;
 use rustc_session::impl_lint_pass;
-use rustc_span::{Span, SyntaxContext, sym};
+use rustc_span::{Span, SyntaxContext};
 use std::collections::BTreeMap;
 use std::collections::btree_map::Entry;
 
@@ -146,7 +148,8 @@ struct BodyVisitor<'a, 'tcx> {
 }
 
 fn is_public_macro(cx: &LateContext<'_>, def_id: LocalDefId) -> bool {
-    (cx.effective_visibilities.is_exported(def_id) || cx.tcx.has_attr(def_id, sym::macro_export))
+    ( cx.effective_visibilities.is_exported(def_id) ||
+        find_attr!(cx.tcx.get_all_attrs(def_id), AttributeKind::MacroExport{..}) )
         && !cx.tcx.is_doc_hidden(def_id)
 }