Inline simple setter calls.

src/arm/lithium-codegen-arm.cc

Index: src/arm/lithium-codegen-arm.cc
diff --git a/src/arm/lithium-codegen-arm.cc b/src/arm/lithium-codegen-arm.cc
index d827f8c82fd9b6ceced8b333ee058d326e09a631..8ab9531a7a51a0133e188467bfafd929087131e5 100644
--- a/src/arm/lithium-codegen-arm.cc
+++ b/src/arm/lithium-codegen-arm.cc
@@ -493,11 +493,12 @@ void LCodeGen::WriteTranslation(LEnvironment* environment,
     case JS_CONSTRUCT:
       translation->BeginConstructStubFrame(closure_id, translation_size);
       break;
+    case JS_SETTER:
+      // TODO(svenpanne) Implement me!
+      break;
     case ARGUMENTS_ADAPTOR:
       translation->BeginArgumentsAdaptorFrame(closure_id, translation_size);
       break;
-    default:
-      UNREACHABLE();
   }
   for (int i = 0; i < translation_size; ++i) {
     LOperand* value = environment->values()->at(i);