[turbofan] cleanup PointerMap

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 462 matching lines @@
   void AllocateGeneralRegisters();
   void AllocateDoubleRegisters();
 
   // Phase 5: assign spill splots.
   void AssignSpillSlots();
 
   // Phase 6: commit assignment.
   void CommitAssignment();
 
   // Phase 7: compute values for pointer maps.
-  void PopulatePointerMaps();  // TODO(titzer): rename to PopulateReferenceMaps.
+  void PopulateReferenceMaps();
 
   // Phase 8: reconnect split ranges with moves.
   void ConnectRanges();
 
   // Phase 9: insert moves to connect ranges across basic blocks.
   void ResolveControlFlow();
 
  private:
   int GetVirtualRegister() { return code()->NextVirtualRegister(); }
 
@@ skipping 191 matching lines @@
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(RegisterAllocator);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_REGISTER_ALLOCATOR_H_