Allow uint32 value on optimized frames if they are consumed by safe operations.

src/x64/lithium-codegen-x64.h

Index: src/x64/lithium-codegen-x64.h
diff --git a/src/x64/lithium-codegen-x64.h b/src/x64/lithium-codegen-x64.h
index 57833744356fa73766b0383468f9801e2ef81dc8..194afe462ffd81618447a802c91a54d2a4a915b8 100644
--- a/src/x64/lithium-codegen-x64.h
+++ b/src/x64/lithium-codegen-x64.h
@@ -98,6 +98,7 @@ class LCodeGen BASE_EMBEDDED {
 
   // Deferred code support.
   void DoDeferredNumberTagD(LNumberTagD* instr);
+  void DoDeferredNumberTagU(LNumberTagU* instr);
   void DoDeferredTaggedToI(LTaggedToI* instr);
   void DoDeferredMathAbsTaggedHeapNumber(LUnaryMathOperation* instr);
   void DoDeferredStackCheck(LStackCheck* instr);
@@ -223,7 +224,8 @@ class LCodeGen BASE_EMBEDDED {
 
   void AddToTranslation(Translation* translation,
                         LOperand* op,
-                        bool is_tagged);
+                        bool is_tagged,
+                        bool is_uint32);
   void PopulateDeoptimizationData(Handle<Code> code);
   int DefineDeoptimizationLiteral(Handle<Object> literal);