Fix for https://code.google.com/p/dart/issues/detail?id=5851 Proper line #s and columns for Dart er…

Source/bindings/dart/DartController.h

Index: Source/bindings/dart/DartController.h
diff --git a/Source/bindings/dart/DartController.h b/Source/bindings/dart/DartController.h
index 724f99fd10b59aaa90ed1bc7c116a591b2053b68..3074ed4c9e4ab1f8c171f095036a2c65ded9a990 100644
--- a/Source/bindings/dart/DartController.h
+++ b/Source/bindings/dart/DartController.h
@@ -53,6 +53,9 @@ class ScriptElementProxy;
 class ScriptExecutionContext;
 class ScriptState;
 
+typedef HashMap<intptr_t, DartScriptState*> LibraryIdMap;
+typedef HashMap<Dart_Isolate, LibraryIdMap*> ScriptStatesMap;
+
 // This class provides the linkage between a Frame and its attached
 // Dart isolates. It is similar to ScriptController for JavaScript.
 // The DartController is owned by its Frame.
@@ -77,6 +80,7 @@ public:
     Frame* frame() const { return m_frame; }
     void collectScriptStates(ScriptState* v8ScriptState, Vector<ScriptState*>& result);
     void collectScriptStatesForIsolate(Dart_Isolate, v8::Handle<v8::Context> v8Context, Vector<ScriptState*>& result);
+    DartScriptState* lookupScriptState(Dart_Isolate, v8::Handle<v8::Context> v8Context, intptr_t libraryId);
 
     static DartController* retrieve(Frame*);
     static DartController* retrieve(ScriptExecutionContext*);
@@ -99,6 +103,9 @@ private:
     void collectScripts(HashSet<Document*>&, Document*);
     void processScriptInQueue();
 
+    LibraryIdMap* libraryIdMapForIsolate(Dart_Isolate);
+    DartScriptState* lookupScriptStateFromLibraryIdMap(Dart_Isolate, v8::Handle<v8::Context>, LibraryIdMap*, intptr_t libraryId);
+
     // The frame that owns this controller.
     Frame* m_frame;
 
@@ -109,8 +116,6 @@ private:
     Dart_Isolate m_isolate;
     RefPtr<DartApplicationLoader> m_loader;
 
-    typedef HashMap<intptr_t, DartScriptState*> LibraryIdMap;
-    typedef HashMap<Dart_Isolate, LibraryIdMap*> ScriptStatesMap;
     ScriptStatesMap m_scriptStates;
 
     typedef HashMap<String, NPObject*> NPObjectMap;