Fix uint32-to-smi conversion in Lithium

src/arm/lithium-arm.cc

Index: src/arm/lithium-arm.cc
diff --git a/src/arm/lithium-arm.cc b/src/arm/lithium-arm.cc
index 3fb07bc2c1207b0d912c7784a673d9162c57bda5..86d5d2b329024b72bfb0cf9acde1ce7e78763537 100644
--- a/src/arm/lithium-arm.cc
+++ b/src/arm/lithium-arm.cc
@@ -2014,8 +2014,9 @@ LInstruction* LChunkBuilder::DoChange(HChange* instr) {
     } else if (to.IsSmi()) {
       HValue* val = instr->value();
       LOperand* value = UseRegister(val);
-      LInstruction* result =
-          DefineSameAsFirst(new(zone()) LInteger32ToSmi(value));
+      LInstruction* result = val->CheckFlag(HInstruction::kUint32)
+          ? DefineSameAsFirst(new(zone()) LUint32ToSmi(value))
+          : DefineSameAsFirst(new(zone()) LInteger32ToSmi(value));
       if (val->HasRange() && val->range()->IsInSmiRange()) {
         return result;
       }