Make Array::kHeaderSize protected, and only use kHeaderSize of its subclasses...

src/x64/codegen-x64.cc

 // Copyright 2009 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 5303 matching lines @@
       Comment cmnt(masm, "[ Load from keyed Property");
       Variable* var = expression_->AsVariableProxy()->AsVariable();
       bool is_global = var != NULL;
       ASSERT(!is_global || var->is_global());
       // Inline array load code if inside of a loop.  We do not know
       // the receiver map yet, so we initially generate the code with
       // a check against an invalid map.  In the inline cache code, we
       // patch the map check if appropriate.
 
       // TODO(x64): Implement inlined loads for keyed properties.
+      // Make sure to load length field as a 32-bit quantity.
       //      Comment cmnt(masm, "[ Load from keyed Property");
 
       RelocInfo::Mode mode = is_global
         ? RelocInfo::CODE_TARGET_CONTEXT
         : RelocInfo::CODE_TARGET;
       Result answer = cgen_->frame()->CallKeyedLoadIC(mode);
       // Make sure that we do not have a test instruction after the
       // call.  A test instruction after the call is used to
       // indicate that we have generated an inline version of the
       // keyed load.  The explicit nop instruction is here because
@@ skipping 1607 matching lines @@
 int CompareStub::MinorKey() {
   // Encode the two parameters in a unique 16 bit value.
   ASSERT(static_cast<unsigned>(cc_) < (1 << 15));
   return (static_cast<unsigned>(cc_) << 1) | (strict_ ? 1 : 0);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal