A64: Add a test for HToFastProperties.

src/a64/lithium-codegen-a64.cc

 // Copyright 2013 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 5142 matching lines @@
 
 void LCodeGen::DoThisFunction(LThisFunction* instr) {
   Register result = ToRegister(instr->result());
   __ Ldr(result, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
 }
 
 
 void LCodeGen::DoToFastProperties(LToFastProperties* instr) {
   ASSERT(ToRegister(instr->value()).Is(x0));
   ASSERT(ToRegister(instr->result()).Is(x0));
-  ASM_UNIMPLEMENTED_BREAK("DoToFastProperties");
   __ Push(x0);
   CallRuntime(Runtime::kToFastProperties, 1, instr);
 }
 
 
 void LCodeGen::DoRegExpLiteral(LRegExpLiteral* instr) {
   Label materialized;
   // Registers will be used as follows:
   // x7 = literals array.
   // x1 = regexp literal.
@@ skipping 323 matching lines @@
   __ Bind(&out_of_object);
   __ Ldr(result, FieldMemOperand(object, JSObject::kPropertiesOffset));
   // Index is equal to negated out of object property index plus 1.
   __ Sub(result, result, Operand::UntagSmiAndScale(index, kPointerSizeLog2));
   __ Ldr(result, FieldMemOperand(result,
                                  FixedArray::kHeaderSize - kPointerSize));
   __ Bind(&done);
 }
 
 } }  // namespace v8::internal