[turbofan] use START and END gap positions for constraints

src/compiler/register-allocator.h

Index: src/compiler/register-allocator.h
diff --git a/src/compiler/register-allocator.h b/src/compiler/register-allocator.h
index 19cac29326bbeebfb4d621fe98fd2bd9d32d8bab..b17837ba59efe89a32a948bd79ee6be240f5a2c1 100644
--- a/src/compiler/register-allocator.h
+++ b/src/compiler/register-allocator.h
@@ -474,8 +474,8 @@ class RegisterAllocator FINAL : public ZoneObject {
               InstructionOperand* hint);
   void Use(LifetimePosition block_start, LifetimePosition position,
            InstructionOperand* operand, InstructionOperand* hint);
-  void AddConstraintsGapMove(int index, InstructionOperand* from,
-                             InstructionOperand* to);
+  void AddGapMove(int index, GapInstruction::InnerPosition position,
+                  InstructionOperand* from, InstructionOperand* to);
 
   // Helper methods for updating the life range lists.
   void AddToActive(LiveRange* range);