**Do you want to request a *feature* or report a *bug*?**
bug
**What is the current behavior?**
React hooks linter fails with this piece of code

```js
function useHook() {
  const ref = React.useRef([1, 2, 3]);
  const res = []
  // valid because there are not unexpected returns
  if (ref.current) {
    for (let i = 0; i !== ref.current.length && !ref.current[i]; ++i ) {
      res.push(ref.current[i]);
    }
  }
  React.useLayoutEffect(() => {});
}
```

however a bit more usual for loop is handled as expected
```js
function useHook() {
  const ref = React.useRef([1, 2, 3]);
  const res = []
  if (ref.current) {
    for (let i = 0; i !== ref.current.length; ++i ) {
      res.push(ref.current[i]);
    }
  }
  React.useLayoutEffect(() => {});
}
```

**What is the expected behavior?**

Skip for looks without returns

**Which versions of React, and which browser / OS are affected by this issue? Did this work in previous versions of React?**

eslint-plugin-react-hooks 0.0.0
paths = 0;
            for (const prevSegment of segment.prevSegments) {
              paths += countPathsFromStart(prevSegment);
            }
          }
          cache.set(segment.id, paths);
          return paths;
        }
        /**
         * Count the number of code paths from this segment to the end of the
         * function. For example:
         *
         * ```js
         * function MyComponent() {
         *    Segment 1
         *   if (condition) {
         *      Segment 2
         *   } else {
         *      Segment 3
         *   }
         * }
         * ```
         *
         * Segments 2 and 3 have one path to the end of `MyComponent` and
         * segment 1 has two paths to the end of `MyComponent` since we could
         * either take the path of segment 1 or segment 2.
         *
         * Populates `cyclic` with cyclic segments.
         */
        function countPathsToEnd(segment) {