Support JavaScriptCore stack traces.

lib/src/trace.dart

Index: lib/src/trace.dart
diff --git a/lib/src/trace.dart b/lib/src/trace.dart
index 954cf453e9020a87073d513bf134010286d50a7e..bf26c5175b02719a2953da7b4f93be893c4663bf 100644
--- a/lib/src/trace.dart
+++ b/lib/src/trace.dart
@@ -115,6 +115,7 @@ class Trace implements StackTrace {
     try {
       if (trace.isEmpty) return new Trace(<Frame>[]);
       if (trace.contains(_v8Trace)) return new Trace.parseV8(trace);
+      if (trace.startsWith("\tat ")) return new Trace.parseJSCore(trace);
       if (trace.contains(_firefoxSafariTrace)) {
         return new Trace.parseFirefox(trace);
       }
@@ -147,6 +148,10 @@ class Trace implements StackTrace {
           .skipWhile((line) => !line.startsWith(_v8TraceLine))
           .map((line) => new Frame.parseV8(line)));
 
+  /// Parses a string representation of a JavaScriptCore stack trace.
+  Trace.parseJSCore(String trace)
+      : this(trace.split("\n").map((line) => new Frame.parseV8(line)));
+
   /// Parses a string representation of an Internet Explorer stack trace.
   ///
   /// IE10+ traces look just like V8 traces. Prior to IE10, stack traces can't