Per-isolate embedder-specific data

src/api.cc

Index: src/api.cc
diff --git a/src/api.cc b/src/api.cc
index 30e0881ccec7ceadc179120682714ef1892085d3..6369a9f8cd955597e48b5a100766c031c9b1ac29 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -4870,6 +4870,17 @@ void Isolate::Exit() {
 }
 
 
+void Isolate::SetData(void* data) {
+  i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this);
+  isolate->SetData(data);
+}
+
+void* Isolate::GetData() {
+  i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this);
+  return isolate->GetData();
+}
+
+
 String::Utf8Value::Utf8Value(v8::Handle<v8::Value> obj)
     : str_(NULL), length_(0) {
   i::Isolate* isolate = i::Isolate::Current();