[turbofan] Add TruncateFloat32ToUint32 operator to Turbofan.

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 1db8a6b65d07e1c51e81993f1854542d2ebc294d..f9c4e7ba97377bf122c7e95e1814c8d3c4f91a1f 100644
--- a/src/compiler/arm64/instruction-selector-arm64.cc
+++ b/src/compiler/arm64/instruction-selector-arm64.cc
@@ -1244,6 +1244,11 @@ void InstructionSelector::VisitChangeFloat64ToInt32(Node* node) {
 }
 
 
+void InstructionSelector::VisitTruncateFloat32ToUint32(Node* node) {
+  VisitRR(this, kArm64Float32ToUint32, node);
+}
+
+
 void InstructionSelector::VisitChangeFloat64ToUint32(Node* node) {
   VisitRR(this, kArm64Float64ToUint32, node);
 }