Basic tag infrastructure

runtime/vm/native_entry.cc

Index: runtime/vm/native_entry.cc
diff --git a/runtime/vm/native_entry.cc b/runtime/vm/native_entry.cc
index af4bd9691598e25d4374050456a29563ff1e552d..0c36a65f22fd42a505e356cc85d704132e09cfe4 100644
--- a/runtime/vm/native_entry.cc
+++ b/runtime/vm/native_entry.cc
@@ -8,6 +8,8 @@
 
 #include "vm/dart_api_impl.h"
 #include "vm/dart_api_state.h"
+#include "vm/tags.h"
+
 
 namespace dart {
 
@@ -51,6 +53,7 @@ void NativeEntry::NativeCallWrapper(Dart_NativeArguments args,
   VERIFY_ON_TRANSITION;
   NativeArguments* arguments = reinterpret_cast<NativeArguments*>(args);
   Isolate* isolate = arguments->isolate();
+  VMTagScope tagScope(isolate, VMTag::kRuntimeNativeTagId);
   ApiState* state = isolate->api_state();
   ASSERT(state != NULL);
   ApiLocalScope* current_top_scope = state->top_scope();