[turbofan] Implemented the TruncateFloat32ToInt64 TurboFan operator.

src/compiler/arm64/instruction-selector-arm64.cc

Index: src/compiler/arm64/instruction-selector-arm64.cc
diff --git a/src/compiler/arm64/instruction-selector-arm64.cc b/src/compiler/arm64/instruction-selector-arm64.cc
index 50dfb87f2140c8010267cce954b0adc828cd24dd..4b3cd4c3b5b8b601bb2410e61782f36f52895da1 100644
--- a/src/compiler/arm64/instruction-selector-arm64.cc
+++ b/src/compiler/arm64/instruction-selector-arm64.cc
@@ -1237,6 +1237,11 @@ void InstructionSelector::VisitChangeFloat64ToUint32(Node* node) {
 }
 
 
+void InstructionSelector::VisitTruncateFloat32ToInt64(Node* node) {
+  VisitRR(this, kArm64Float32ToInt64, node);
+}
+
+
 void InstructionSelector::VisitTruncateFloat64ToInt64(Node* node) {
   VisitRR(this, kArm64Float64ToInt64, node);
 }