Fix missing write barrier in store field stub.

src/arm/lithium-arm.h

Index: src/arm/lithium-arm.h
diff --git a/src/arm/lithium-arm.h b/src/arm/lithium-arm.h
index dbae81310cb09e04917157d869d7f0c78ede3bcc..735914f44811fd6991811fe159f27285d38a76df 100644
--- a/src/arm/lithium-arm.h
+++ b/src/arm/lithium-arm.h
@@ -1684,11 +1684,12 @@ class LSmiUntag: public LTemplateInstruction<1, 1, 0> {
 };
 
 
-class LStoreNamedField: public LTemplateInstruction<0, 2, 0> {
+class LStoreNamedField: public LTemplateInstruction<0, 2, 1> {
  public:
-  LStoreNamedField(LOperand* obj, LOperand* val) {
+  LStoreNamedField(LOperand* obj, LOperand* val, LOperand* temp) {
     inputs_[0] = obj;
     inputs_[1] = val;
+    temps_[0] = temp;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(StoreNamedField, "store-named-field")