Compile FastCloneShallowArrayStub using Crankshaft.

src/hydrogen.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 939 matching lines @@
     IfBuilder(HGraphBuilder* builder, BailoutId id);
     ~IfBuilder() {
       if (!finished_) End();
     }
 
     HInstruction* BeginTrue(
         HValue* left,
         HValue* right,
         Token::Value token,
         Representation input_representation = Representation::Integer32());
+    void BeginCompareMapTrue(HValue* value, Handle<Map> map);
     void BeginFalse();
     void End();
 
    private:
     Zone* zone() { return builder_->zone(); }
 
     HGraphBuilder* builder_;
     bool finished_;
     HBasicBlock* first_true_block_;
     HBasicBlock* last_true_block_;
@@ skipping 45 matching lines @@
                                 ElementsKind kind,
                                 HValue* capacity);
 
   void BuildCopyElements(HContext* context,
                          HValue* from_elements,
                          ElementsKind from_elements_kind,
                          HValue* to_elements,
                          ElementsKind to_elements_kind,
                          HValue* length);
 
+  HValue* BuildCloneShallowArray(HContext* context,
+                                 HValue* boilerplate,
+                                 AllocationSiteMode mode,
+                                 ElementsKind kind,
+                                 BailoutId id,
+                                 int length);
+
  private:
   HGraphBuilder();
   CompilationInfo* info_;
   HGraph* graph_;
   HBasicBlock* current_block_;
 };
 
 
 class HOptimizedGraphBuilder: public HGraphBuilder, public AstVisitor {
  public:
@@ skipping 644 matching lines @@
   EmbeddedVector<char, 64> filename_;
   HeapStringAllocator string_allocator_;
   StringStream trace_;
   int indent_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_H_