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

src/handles.cc

Index: src/handles.cc
diff --git a/src/handles.cc b/src/handles.cc
index bcd79b08816477f947defb8da93e0774f7284089..9701b16fe6aa057190b32a8e52a0105ae994b5c2 100644
--- a/src/handles.cc
+++ b/src/handles.cc
@@ -368,6 +368,17 @@ Handle<Object> GetProperty(Handle<Object> obj,
 }
 
 
+Handle<Object> GetProperty(Handle<JSObject> obj,
+                           Handle<String> name,
+                           LookupResult* result) {
+  PropertyAttributes attributes;
+  Isolate* isolate = Isolate::Current();
+  CALL_HEAP_FUNCTION(isolate,
+                     obj->GetProperty(*obj, result, *name, &attributes),
+                     Object);
+}
+
+
 Handle<Object> GetElement(Handle<Object> obj,
                           uint32_t index) {
   Isolate* isolate = Isolate::Current();