Convert FastNewClosureStub into hydrogen.

src/x64/lithium-x64.cc

Index: src/x64/lithium-x64.cc
diff --git a/src/x64/lithium-x64.cc b/src/x64/lithium-x64.cc
index a449d8efc82614188c9cbcc3109c3cd2912aeab7..44793367ba9624c85316d42e9728c420c1dd24fd 100644
--- a/src/x64/lithium-x64.cc
+++ b/src/x64/lithium-x64.cc
@@ -263,6 +263,14 @@ void LTypeofIsAndBranch::PrintDataTo(StringStream* stream) {
 }
 
 
+void LStoreCodeEntry::PrintDataTo(StringStream* stream) {
+  stream->Add(" = ");
+  js_function()->PrintTo(stream);
+  stream->Add(".code_entry = ");
+  code_object()->PrintTo(stream);
+}
+
+
 void LInnerAllocatedObject::PrintDataTo(StringStream* stream) {
   stream->Add(" = ");
   base_object()->PrintTo(stream);
@@ -1083,6 +1091,14 @@ LInstruction* LChunkBuilder::DoPushArgument(HPushArgument* instr) {
 }
 
 
+LInstruction* LChunkBuilder::DoStoreCodeEntry(
+    HStoreCodeEntry* store_code_entry) {
+  LOperand* js_function = UseRegister(store_code_entry->js_function());
+  LOperand* code_object = UseTempRegister(store_code_entry->code_object());
+  return new(zone()) LStoreCodeEntry(js_function, code_object);
+}
+
+
 LInstruction* LChunkBuilder::DoInnerAllocatedObject(
     HInnerAllocatedObject* inner_object) {
   LOperand* base_object = UseRegisterAtStart(inner_object->base_object());