[Interpreter] Add function literal support.

src/runtime/runtime-interpreter.cc

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/runtime/runtime-utils.h"
 
 #include "src/arguments.h"
 #include "src/isolate-inl.h"
 
 namespace v8 {
@@ skipping 119 matching lines @@
 
 
 RUNTIME_FUNCTION(Runtime_InterpreterTypeOf) {
   SealHandleScope shs(isolate);
   DCHECK_EQ(1, args.length());
   CONVERT_ARG_HANDLE_CHECKED(Object, x, 0);
   return Object::cast(*Object::TypeOf(isolate, x));
 }
 
 
+RUNTIME_FUNCTION(Runtime_InterpreterNewClosure) {
+  HandleScope scope(isolate);
+  DCHECK_EQ(2, args.length());
+  CONVERT_ARG_HANDLE_CHECKED(SharedFunctionInfo, shared, 0);
+  CONVERT_SMI_ARG_CHECKED(pretenured_flag, 1);
+  Handle<Context> context(isolate->context(), isolate);
+  return *isolate->factory()->NewFunctionFromSharedFunctionInfo(
+      shared, context, static_cast<PretenureFlag>(pretenured_flag));
+}
+
 }  // namespace internal
 }  // namespace v8