plugin dead-code-elimination cannot handle arrow function to JSXIdentifier inside function

## Bug Report

**Current Behavior**
use babel with `@babel/plugin-syntax-jsx` plugin to parse the following code snippet will lead to errors.

```
TypeError: Property name of JSXOpeningElement expected node to be of a type ["JSXIdentifier","JSXMemberExpression"] but instead got "ArrowFunctionExpression"
```

**Input Code**

snippet.js

```js
it("should support nested Profilers", () => {
const FunctionComponent = ({ label }) =>

;
return
});
```

but if you remove the top `it` function it will be parsed.

**Expected behavior/code**
parse successfully without errors

**Babel Configuration (.babelrc, package.json, cli command)**

```js
./node_modules/.bin/babel --plugins @babel/plugin-syntax-jsx snippet.js
```

**Environment**
- Babel version(s): v7.3.4
- Node/npm version: [Node 11/npm 6]
- OS: [OSX 10.13.6]
- How you are using Babel: cli

**Possible Solution**

**Additional context/Screenshots**
Add any other context about the problem here. If applicable, add screenshots to help explain.

Start by running the provided Babel CLI command with @babel/plugin-syntax-jsx against snippet.js and reproducing the nested arrow-function JSX error. Trace how the dead-code-elimination plugin handles the JSXIdentifier inside the outer it function; done means the snippet parses successfully without the TypeError.

Written by the indexing model from the issue text.