[turbofan] Add RoundUint32ToFloat32 operator to Turbofan.

src/compiler/raw-machine-assembler.h

Index: src/compiler/raw-machine-assembler.h
diff --git a/src/compiler/raw-machine-assembler.h b/src/compiler/raw-machine-assembler.h
index b324828188fa54ce7e64a73e09d0f8198cafcc8d..1ba5be87b6125f613eb68e0299474323d1fb9790 100644
--- a/src/compiler/raw-machine-assembler.h
+++ b/src/compiler/raw-machine-assembler.h
@@ -481,6 +481,9 @@ class RawMachineAssembler {
   Node* RoundInt64ToFloat64(Node* a) {
     return AddNode(machine()->RoundInt64ToFloat64(), a);
   }
+  Node* RoundUint32ToFloat32(Node* a) {
+    return AddNode(machine()->RoundUint32ToFloat32(), a);
+  }
   Node* RoundUint64ToFloat32(Node* a) {
     return AddNode(machine()->RoundUint64ToFloat32(), a);
   }