Bug 1246293 - Fix a typo in DefineSelfHostedProperty; r=till

js/src/jsapi.cpp

@@ -3062,7 +3062,7 @@ DefineSelfHostedProperty(JSContext* cx, HandleObject obj, HandleId id,
             return false;
         }
         MOZ_ASSERT(setterValue.isObject() && setterValue.toObject().is<JSFunction>());
-        setterFunc = &getterValue.toObject().as<JSFunction>();
+        setterFunc = &setterValue.toObject().as<JSFunction>();
     }
     JSNative setterOp = JS_DATA_TO_FUNC_PTR(JSNative, setterFunc.get());