Add runtime check to avoid overwrite arg easily in diag and store and restore snapshot when set subdiag arg

Signed-off-by: xizheyin <xizheyin@smail.nju.edu.cn>

1 files changed, 3 insertions, 0 deletions

diff --git a/compiler/rustc_const_eval/src/errors.rs b/compiler/rustc_const_eval/src/errors.rs
index 037cbf777e7..4ea2d6f2ebb 100644
--- a/compiler/rustc_const_eval/src/errors.rs
+++ b/compiler/rustc_const_eval/src/errors.rs
@@ -293,6 +293,9 @@ impl Subdiagnostic for FrameNote {
             span.push_span_label(self.span, fluent::const_eval_frame_note_last);
         }
         let msg = diag.eagerly_translate(fluent::const_eval_frame_note);
+        diag.remove_arg("times");
+        diag.remove_arg("where_");
+        diag.remove_arg("instance");
         diag.span_note(span, msg);
     }
 }