Auto merge of #60763 - matklad:tt-parser, r=petrochenkov

[rust.git] / src / librustc / middle / dead.rs

diff --git a/src/librustc/middle/dead.rs b/src/librustc/middle/dead.rs
index a0107ed0546ddd2209245caa06445a344084da69..2a9928567f4dcfa2fed79a3dd44afba6ed765089 100644 (file)
--- a/src/librustc/middle/dead.rs
+++ b/src/librustc/middle/dead.rs
@@ -19,6 +19,7 @@
 
 use syntax::{ast, source_map};
 use syntax::attr;
+use syntax::symbol::sym;
 use syntax_pos;
 
 // Any local node that may call something in its body block should be
@@ -304,22 +305,22 @@ fn visit_ty(&mut self, ty: &'tcx hir::Ty) {
 fn has_allow_dead_code_or_lang_attr(tcx: TyCtxt<'_, '_, '_>,
                                     id: hir::HirId,
                                     attrs: &[ast::Attribute]) -> bool {
-    if attr::contains_name(attrs, "lang") {
+    if attr::contains_name(attrs, sym::lang) {
         return true;
     }
 
     // Stable attribute for #[lang = "panic_impl"]
-    if attr::contains_name(attrs, "panic_handler") {
+    if attr::contains_name(attrs, sym::panic_handler) {
         return true;
     }
 
     // (To be) stable attribute for #[lang = "oom"]
-    if attr::contains_name(attrs, "alloc_error_handler") {
+    if attr::contains_name(attrs, sym::alloc_error_handler) {
         return true;
     }
 
     // Don't lint about global allocators
-    if attr::contains_name(attrs, "global_allocator") {
+    if attr::contains_name(attrs, sym::global_allocator) {
         return true;
     }