[turbofan] Use inline allocation for closures.

src/compiler/js-create-lowering.h

 // Copyright 2016 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.
 
 #ifndef V8_COMPILER_JS_CREATE_LOWERING_H_
 #define V8_COMPILER_JS_CREATE_LOWERING_H_
 
 #include "src/compiler/graph-reducer.h"
 
 namespace v8 {
@@ skipping 27 matching lines @@
         literals_array_(literals_array),
         zone_(zone) {}
   ~JSCreateLowering() final {}
 
   Reduction Reduce(Node* node) final;
 
  private:
   Reduction ReduceJSCreate(Node* node);
   Reduction ReduceJSCreateArguments(Node* node);
   Reduction ReduceJSCreateArray(Node* node);
+  Reduction ReduceJSCreateClosure(Node* node);
   Reduction ReduceJSCreateIterResultObject(Node* node);
   Reduction ReduceJSCreateLiteral(Node* node);
   Reduction ReduceJSCreateFunctionContext(Node* node);
   Reduction ReduceJSCreateWithContext(Node* node);
   Reduction ReduceJSCreateCatchContext(Node* node);
   Reduction ReduceJSCreateBlockContext(Node* node);
   Reduction ReduceNewArray(Node* node, Node* length, int capacity,
                            Handle<AllocationSite> site);
 
   Node* AllocateArguments(Node* effect, Node* control, Node* frame_state);
@@ skipping 32 matching lines @@
   JSGraph* const jsgraph_;
   MaybeHandle<LiteralsArray> const literals_array_;
   Zone* const zone_;
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_JS_CREATE_LOWERING_H_