Support "[as ...]" in V8 stack traces in pkg/stack_trace.

pkg/stack_trace/test/frame_test.dart

Index: pkg/stack_trace/test/frame_test.dart
diff --git a/pkg/stack_trace/test/frame_test.dart b/pkg/stack_trace/test/frame_test.dart
index 0be717da0552f8eacf8166b0f5944ff3dcfabd3e..cb52fc30963f24d1c4291b09df903d0bbde5e06a 100644
--- a/pkg/stack_trace/test/frame_test.dart
+++ b/pkg/stack_trace/test/frame_test.dart
@@ -74,6 +74,18 @@ void main() {
       expect(frame.member, equals('<fn>'));
     });
 
+    solo_test('parses a stack frame with [as ...] correctly', () {

[Jennifer Messerly, 2013/09/20 19:14:46]

remove solo?

[nweiz, 2013/09/20 19:29:09]

Done.

+      // Ignore "[as ...]", since other stack trace formats don't support a
+      // similar construct.
+      var frame = new Frame.parseV8("    at VW.call\$0 [as call\$4] "
+          "(http://pub.dartlang.org/stuff.dart.js:560:28)");
+      expect(frame.uri,
+          equals(Uri.parse("http://pub.dartlang.org/stuff.dart.js")));
+      expect(frame.line, equals(560));
+      expect(frame.column, equals(28));
+      expect(frame.member, equals('VW.call\$0'));
+    });
+
     test('converts "<anonymous>" to "<fn>"', () {
       String parsedMember(String member) =>
           new Frame.parseV8('    at $member (foo:0:0)').member;
@@ -91,6 +103,9 @@ void main() {
           throwsFormatException);
       expect(() => new Frame.parseV8('    at Foo (dart:async/future.dart:10)'),
           throwsFormatException);
+      expect(() => new Frame.parseV8('    at Foo [as] '
+              '(dart:async/future.dart:10:15)'),
+          throwsFormatException);
       expect(() => new Frame.parseV8('    at (dart:async/future.dart:10:15)'),
           throwsFormatException);
       expect(() => new Frame.parseV8('Foo (dart:async/future.dart:10:15)'),