Revert "Remove unused label in mir"

This reverts commit b2a2450cf2925498e1c3bdd781aa1978f9eb00e5.

diff --git a/src/librustc_mir/interpret/eval_context.rs b/src/librustc_mir/interpret/eval_context.rs
index 7b6cee96a875c25e0cf37008f97434f1137312cc..03137619edaf48d72a0780b073a6446cc575ec53 100644 (file)
--- a/src/librustc_mir/interpret/eval_context.rs
+++ b/src/librustc_mir/interpret/eval_context.rs
@@ -1705,7 +1705,7 @@ pub fn report(&self, e: &mut EvalError, as_err: bool, explicit_span: Option<Span
             let mut trace_text = "\n\nAn error occurred in miri:\n".to_string();
             backtrace.resolve();
             write!(trace_text, "backtrace frames: {}\n", backtrace.frames().len()).unwrap();
-            for (i, frame) in backtrace.frames().iter().enumerate() {
+            'frames: for (i, frame) in backtrace.frames().iter().enumerate() {
                 if frame.symbols().is_empty() {
                     write!(trace_text, "{}: no symbols\n", i).unwrap();
                 }