Convert FastNewClosureStub into hydrogen.

src/runtime.cc

Index: src/runtime.cc
diff --git a/src/runtime.cc b/src/runtime.cc
index 65b1d35650930035c1f1c3b6ecc905537941e159..53bf14f48deb90990675bf810e51c9f5cc06885f 100644
--- a/src/runtime.cc
+++ b/src/runtime.cc
@@ -7951,6 +7951,23 @@ RUNTIME_FUNCTION(MaybeObject*, Runtime_NewStrictArgumentsFast) {
 }
 
 
+RUNTIME_FUNCTION(MaybeObject*, Runtime_NewClosureBailout) {
+  HandleScope scope(isolate);
+  ASSERT(args.length() == 1);
+  CONVERT_ARG_HANDLE_CHECKED(SharedFunctionInfo, shared, 0);
+  Handle<Context> context(isolate->context());
+
+  // The caller ensures that we pretenure closures that are assigned
+  // directly to properties.

[Michael Starzinger, 2013/08/27 08:12:51]

nit: Comment does not apply, lets just drop it.

[mvstanton, 2013/08/27 09:23:04]

Done.

+  PretenureFlag pretenure_flag = NOT_TENURED;
+  Handle<JSFunction> result =
+      isolate->factory()->NewFunctionFromSharedFunctionInfo(shared,
+                                                            context,
+                                                            pretenure_flag);
+  return *result;
+}
+
+
 RUNTIME_FUNCTION(MaybeObject*, Runtime_NewClosure) {
   HandleScope scope(isolate);
   ASSERT(args.length() == 3);