```js
  let foo = {}
  useEffect(() => {
    foo.bar.baz = 43;
  }, []);
```

This asks you to include `foo.bar.baz` into deps. But this doesn't make sense, as you write to it. Instead it should ask to include `foo.bar` into array.

If `foo` is a newly created object in render scope then we might additionally nudge you to `useRef` for it instead. Because otherwise it won't be shared between renders.
useEffect(() => {
                      console.log(MutableStore.hello.world, props.foo, x, y, z, global.stuff);
                    }, [props.foo, x, y]);
                  }
                }
              `,
            },
          ],
        },
      ],
    },
    {
      code: normalizeIndent`
        import MutableStore from 'store';
        let z = {};
        function MyComponent(props) {
          let x = props.foo;
          {
            let y = props.bar;
            useEffect(() => {
              // nothing
            }, [MutableStore.hello.world, props.foo, x, y, z, global.stuff]);
          }
        }
      `,
      errors: [
        {
          message:
            'React Hook useEffect has unnecessary dependencies: ' +
            "'MutableStore.hello.world', 'global.stuff', and 'z'. " +