[turbofan] Renamed the ChangeFloat64ToInt64 operator to TruncateFloat64ToInt64.

src/compiler/mips64/instruction-selector-mips64.cc

Index: src/compiler/mips64/instruction-selector-mips64.cc
diff --git a/src/compiler/mips64/instruction-selector-mips64.cc b/src/compiler/mips64/instruction-selector-mips64.cc
index cea4bd676ad5aa4c64282550b9b87193eb7947c9..779ebfdfc870f9bb6a13ed217ee76357ed0856f1 100644
--- a/src/compiler/mips64/instruction-selector-mips64.cc
+++ b/src/compiler/mips64/instruction-selector-mips64.cc
@@ -707,7 +707,7 @@ void InstructionSelector::VisitChangeFloat64ToUint32(Node* node) {
 }
 
 
-void InstructionSelector::VisitChangeFloat64ToInt64(Node* node) {
+void InstructionSelector::VisitTruncateFloat64ToInt64(Node* node) {
   VisitRR(this, kMips64TruncLD, node);
 }