[Interpreter] Add support for JS calls.

src/code-factory.cc

Index: src/code-factory.cc
diff --git a/src/code-factory.cc b/src/code-factory.cc
index c3da10532301274e359c40bf8ca49cee7446e2a4..63dba9d422ad609caa117c318a80ab4738479236 100644
--- a/src/code-factory.cc
+++ b/src/code-factory.cc
@@ -242,5 +242,12 @@ Callable CodeFactory::CallFunction(Isolate* isolate, int argc,
   return Callable(stub.GetCode(), stub.GetCallInterfaceDescriptor());
 }
 
+
+// static
+Callable CodeFactory::PushArgsAndCall(Isolate* isolate) {
+  return Callable(isolate->builtins()->PushArgsAndCall(),
+                  PushArgsAndCallDescriptor(isolate));
+}
+
 }  // namespace internal
 }  // namespace v8