[turbofan] make register allocator verifier independent of phi assignment

src/compiler/register-allocator-verifier.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_VERIFIER_H_
 #define V8_REGISTER_ALLOCATOR_VERIFIER_H_
 
 #include "src/v8.h"
 #include "src/zone-containers.h"
 
@@ skipping 31 matching lines @@
     int value_;  // subkind index when relevant
     int virtual_register_;
   };
 
   struct InstructionConstraint {
     const Instruction* instruction_;
     size_t operand_constaints_size_;
     OperandConstraint* operand_constraints_;
   };
 
-  class OutgoingMapping;
+  class BlockMaps;
 
   typedef ZoneVector<InstructionConstraint> Constraints;
-  typedef ZoneVector<OutgoingMapping*> OutgoingMappings;
 
   Zone* zone() const { return zone_; }
   const RegisterConfiguration* config() { return config_; }
   const InstructionSequence* sequence() const { return sequence_; }
   Constraints* constraints() { return &constraints_; }
 
   static void VerifyInput(const OperandConstraint& constraint);
   static void VerifyTemp(const OperandConstraint& constraint);
   static void VerifyOutput(const OperandConstraint& constraint);
 
   void BuildConstraint(const InstructionOperand* op,
                        OperandConstraint* constraint);
   void CheckConstraint(const InstructionOperand* op,
                        const OperandConstraint* constraint);
 
-  void ConstructOutgoingMappings(OutgoingMappings* outgoing_mappings,
-                                 bool initial_pass);
+  void VerifyGapMoves(BlockMaps* outgoing_mappings, bool initial_pass);
 
   Zone* const zone_;
   const RegisterConfiguration* config_;
   const InstructionSequence* const sequence_;
   Constraints constraints_;
 
   DISALLOW_COPY_AND_ASSIGN(RegisterAllocatorVerifier);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif