[stubs] Unify (and optimize) implementation of ToObject.

src/code-factory.cc

Index: src/code-factory.cc
diff --git a/src/code-factory.cc b/src/code-factory.cc
index be3454994d494ad8bde30b956f721d38caa1c050..acbf515c21d02ef6f20f29d9f1d016eca31d7158 100644
--- a/src/code-factory.cc
+++ b/src/code-factory.cc
@@ -178,6 +178,13 @@ Callable CodeFactory::ToNumber(Isolate* isolate) {
 
 
 // static
+Callable CodeFactory::ToObject(Isolate* isolate) {
+  ToObjectStub stub(isolate);
+  return Callable(stub.GetCode(), stub.GetCallInterfaceDescriptor());
+}
+
+
+// static
 Callable CodeFactory::StringAdd(Isolate* isolate, StringAddFlags flags,
                                 PretenureFlag pretenure_flag) {
   StringAddStub stub(isolate, flags, pretenure_flag);