[turbofan] Add TruncateFloat32ToUint32 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..6e425354089df54d235834350959009d132a8293 100644
--- a/src/compiler/raw-machine-assembler.h
+++ b/src/compiler/raw-machine-assembler.h
@@ -435,6 +435,9 @@ class RawMachineAssembler {
   Node* TruncateFloat32ToInt32(Node* a) {
     return AddNode(machine()->TruncateFloat32ToInt32(), a);
   }
+  Node* TruncateFloat32ToUint32(Node* a) {
+    return AddNode(machine()->TruncateFloat32ToUint32(), a);
+  }
   Node* TryTruncateFloat32ToInt64(Node* a) {
     return AddNode(machine()->TryTruncateFloat32ToInt64(), a);
   }