Reland and fix "Add support for keyed-call on arrays of fast elements"

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 1565 matching lines @@
   class JSArrayBuilder V8_FINAL {
    public:
     JSArrayBuilder(HGraphBuilder* builder,
                    ElementsKind kind,
                    HValue* allocation_site_payload,
                    HValue* constructor_function,
                    AllocationSiteOverrideMode override_mode);
 
     JSArrayBuilder(HGraphBuilder* builder,
                    ElementsKind kind,
-                   HValue* constructor_function);
+                   HValue* constructor_function = NULL);
 
     enum FillMode {
       DONT_FILL_WITH_HOLE,
       FILL_WITH_HOLE
     };
 
     ElementsKind kind() { return kind_; }
 
     HValue* AllocateEmptyArray();
     HValue* AllocateArray(HValue* capacity, HValue* length_field,
                           FillMode fill_mode = FILL_WITH_HOLE);
     HValue* GetElementsLocation() { return elements_location_; }
+    HValue* EmitMapCode();
 
    private:
     Zone* zone() const { return builder_->zone(); }
     int elements_size() const {
       return IsFastDoubleElementsKind(kind_) ? kDoubleSize : kPointerSize;
     }
     HGraphBuilder* builder() { return builder_; }
     HGraph* graph() { return builder_->graph(); }
     int initial_capacity() {
       STATIC_ASSERT(JSArray::kPreallocatedArrayElements > 0);
       return JSArray::kPreallocatedArrayElements;
     }
 
-    HValue* EmitMapCode();
     HValue* EmitInternalMapCode();
     HValue* EstablishEmptyArrayAllocationSize();
     HValue* EstablishAllocationSize(HValue* length_node);
     HValue* AllocateArray(HValue* size_in_bytes, HValue* capacity,
                           HValue* length_field,
                           FillMode fill_mode = FILL_WITH_HOLE);
 
     HGraphBuilder* builder_;
     ElementsKind kind_;
     AllocationSiteMode mode_;
@@ skipping 913 matching lines @@
   }
 
  private:
   HGraphBuilder* builder_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_H_