expand: Leave traces when expanding cfg attributes

2025-03-22 21:42:34 +03:00 · 2025-03-22 21:42:34 +03:00 · 92d802eda6
commit 92d802eda6
parent 65899c06f1
24 changed files with 88 additions and 108 deletions
--- a/compiler/rustc_span/src/symbol.rs
+++ b/compiler/rustc_span/src/symbol.rs
@ -623,6 +623,7 @@ symbols! {
        cfg_target_has_atomic_equal_alignment,
        cfg_target_thread_local,
        cfg_target_vendor,
+        cfg_trace: "<cfg>", // must not be a valid identifier
        cfg_ub_checks,
        cfg_version,
        cfi,