Cleanup mint deoptimization instruction names

runtime/vm/deopt_instructions.h

Index: runtime/vm/deopt_instructions.h
diff --git a/runtime/vm/deopt_instructions.h b/runtime/vm/deopt_instructions.h
index c287e349108f9c26fdd80c415accc95543f09bd5..889ce1d677677ae6e073415bd7ba556872918844 100644
--- a/runtime/vm/deopt_instructions.h
+++ b/runtime/vm/deopt_instructions.h
@@ -224,18 +224,19 @@ class DeoptInstr : public ZoneAllocated {
     kConstant,
     kRegister,
     kFpuRegister,
-    kInt64RegisterPair,
     kFloat32x4FpuRegister,
     kFloat64x2FpuRegister,
     kInt32x4FpuRegister,
     kStackSlot,
     kDoubleStackSlot,
-    kInt64StackSlot,
-    kInt64StackSlotPair,
     kFloat32x4StackSlot,
     kFloat64x2StackSlot,
     kInt32x4StackSlot,
-    kInt64StackSlotRegister,
+    // Mints are split into low and high words. Each word can be in a register
+    // or stack slot. Note Mints are only used on 32-bit architectures.
+    kMintRegisterPair,
+    kMintStackSlotPair,
+    kMintStackSlotRegister,
     kPcMarker,
     kPp,
     kCallerFp,