TF: Rename ConvertXToY machine operators to ChangeXToY.

src/compiler/simplified-lowering.cc

Index: src/compiler/simplified-lowering.cc
diff --git a/src/compiler/simplified-lowering.cc b/src/compiler/simplified-lowering.cc
index 4bfe1e27cac77a881951fc5020693ae9fc781d15..44eed8fddfd64d417c749b94e50f58ea82dd50cd 100644
--- a/src/compiler/simplified-lowering.cc
+++ b/src/compiler/simplified-lowering.cc
@@ -66,8 +66,8 @@ void SimplifiedLowering::DoChangeTaggedToUI32(Node* node, Node* effect,
   Node* loaded = graph()->NewNode(
       machine()->Load(kMachineFloat64), val,
       OffsetMinusTagConstant(HeapNumber::kValueOffset), effect);
-  Operator* op = is_signed ? machine()->ConvertFloat64ToInt32()
-                           : machine()->ConvertFloat64ToUint32();
+  Operator* op = is_signed ? machine()->ChangeFloat64ToInt32()
+                           : machine()->ChangeFloat64ToUint32();
   Node* converted = graph()->NewNode(op, loaded);
 
   // false branch.
@@ -100,7 +100,7 @@ void SimplifiedLowering::DoChangeTaggedToFloat64(Node* node, Node* effect,
   Node* fbranch = graph()->NewNode(common()->IfFalse(), branch);
   Node* untagged = Untag(val);
   Node* converted =
-      graph()->NewNode(machine()->ConvertInt32ToFloat64(), untagged);
+      graph()->NewNode(machine()->ChangeInt32ToFloat64(), untagged);
 
   // merge.
   Node* merge = graph()->NewNode(common()->Merge(2), tbranch, fbranch);