Make exception thrown via v8 public API propagate to v8::TryCatch as JS thrown exceptions do.

src/messages.h

Index: src/messages.h
diff --git a/src/messages.h b/src/messages.h
index 48f32447777f3f1bb283b81db52bc0cf2559144a..0d5f9f71cdb73eb1b4aaa1bdc934e8e3c910f7c8 100644
--- a/src/messages.h
+++ b/src/messages.h
@@ -101,7 +101,9 @@ class MessageHandler {
       Handle<JSArray> stack_frames);
 
   // Report a formatted message (needs JS allocation).
-  static void ReportMessage(MessageLocation* loc, Handle<Object> message);
+  static void ReportMessage(Isolate* isolate,
+                            MessageLocation* loc,
+                            Handle<Object> message);
 
   static void DefaultMessageReport(const MessageLocation* loc,
                                    Handle<Object> message_obj);