Support "..." VM frames in pkg/stack_trace.

pkg/stack_trace/lib/src/frame.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library frame;
 
 
 import 'package:path/path.dart' as path;
 
 import 'trace.dart';
@@ skipping 79 matching lines @@
     if (level < 0) {
       throw new ArgumentError("Argument [level] must be greater than or equal "
           "to 0.");
     }
 
     return new Trace.current(level + 1).frames.first;
   }
 
   /// Parses a string representation of a Dart VM stack frame.
   factory Frame.parseVM(String frame) {
+    // The VM sometimes folds multiple stack frames together and replaces them
+    // with "...".
+    if (frame == '...') {
+      return new Frame(new Uri(), null, null, '...');
+    }
+
     var match = _vmFrame.firstMatch(frame);
     if (match == null) {
       throw new FormatException("Couldn't parse VM stack trace line '$frame'.");
     }
 
     var uri = Uri.parse(match[2]);
     var member = match[1].replaceAll("<anonymous closure>", "<fn>");
     return new Frame(uri, int.parse(match[3]), int.parse(match[4]), member);
   }
 
@@ skipping 56 matching lines @@
 
     var line = match[2] == null ? null : int.parse(match[2]);
     var column = match[3] == null ? null : int.parse(match[3]);
     return new Frame(uri, line, column, match[4]);
   }
 
   Frame(this.uri, this.line, this.column, this.member);
 
   String toString() => '$location in $member';
 }