Support merged Dart-JS callstacks

Source/bindings/v8/ScriptDebugServer.h

Index: Source/bindings/v8/ScriptDebugServer.h
diff --git a/Source/bindings/v8/ScriptDebugServer.h b/Source/bindings/v8/ScriptDebugServer.h
index a0fe24b420680dc855e1a2edb3d9c9b67d23778e..9a7045626d8cf6c1f286e18eb6d3a12030e0c392 100644
--- a/Source/bindings/v8/ScriptDebugServer.h
+++ b/Source/bindings/v8/ScriptDebugServer.h
@@ -86,6 +86,7 @@ public:
     virtual int frameCount() = 0;
 
     virtual StackTrace currentCallFrames() = 0;
+    virtual StackTrace currentCallFramesForVm() = 0;

[vsm, 2014/08/13 14:26:45]

What is the distinction between this and the above?  The above merges across all
VMs?

[Jacob, 2014/08/13 21:36:15]

removed this method and cleaned up the logic so currentCallFrames() continues to
just be the call frames for the specific VM.  merging then happens purely in
UnifiedScriptDebugServer. Required tweaking the API for ScriptDebugListener so
that the StackTrace isn't passed directly with the paused event..

     virtual StackTrace currentCallFramesForAsyncStack() = 0;
 
     virtual bool isPaused() = 0;
@@ -132,6 +133,7 @@ public:
     virtual ScriptCallFrame topCallFrameNoScopes();
     virtual int frameCount();
     virtual StackTrace currentCallFrames();
+    virtual StackTrace currentCallFramesForVm();
     virtual StackTrace currentCallFramesForAsyncStack();
 
     class Task {