[turbofan] initial framework for unittesting of register allocator

src/compiler/register-allocator.h

 // Copyright 2014 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_REGISTER_ALLOCATOR_H_
 #define V8_REGISTER_ALLOCATOR_H_
 
 #include "src/compiler/instruction.h"
 #include "src/zone-containers.h"
 
@@ skipping 299 matching lines @@
   InstructionOperand* current_hint_operand_;
   InstructionOperand* spill_operand_;
   int spill_start_index_;
 
   friend class RegisterAllocator;  // Assigns to kind_.
 
   DISALLOW_COPY_AND_ASSIGN(LiveRange);
 };
 
 
-class RegisterAllocator BASE_EMBEDDED {
+class RegisterAllocator FINAL {
  public:
   class Config {
    public:
     int num_general_registers_;
     int num_double_registers_;
     int num_aliased_double_registers_;
     const char* (*GeneralRegisterName)(int allocation_index);
     const char* (*DoubleRegisterName)(int allocation_index);
   };
 
@@ skipping 209 matching lines @@
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(RegisterAllocator);
 };
 
 }
 }
 }  // namespace v8::internal::compiler
 
 #endif  // V8_REGISTER_ALLOCATOR_H_