Work around issue 14125 in stack_trace by adding a dummy setter.

R=rnystrom@google.com
BUG=13945

Review URL: https://codereview.chromium.org//27416002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/stack_trace@28811 260f80e4-7a28-3924-810f-c04153c831b5

pkgs/stack_trace/lib/src/lazy_trace.dart

diff --git a/pkgs/stack_trace/lib/src/lazy_trace.dart b/pkgs/stack_trace/lib/src/lazy_trace.dart
index ae56b5f..874123e 100644
--- a/pkgs/stack_trace/lib/src/lazy_trace.dart
+++ b/pkgs/stack_trace/lib/src/lazy_trace.dart
@@ -30,4 +30,7 @@
   Trace foldFrames(bool predicate(frame)) =>
     new LazyTrace(() => _trace.foldFrames(predicate));
   String toString() => _trace.toString();
+
+  // Work around issue 14075.
+  set frames(_) => throw new UnimplementedError();
 }