jshint/jshint — pull request #1052 by usrbincc (2013-05-03 20:15:41+00:00)
Title: Fix "TypeError: Cannot read property 'use strict' of undefined".

Fixes a crash with this input:

```bash
cat > use-strict-undefined.js <<"END"
// jshint esnext: true, globalstrict: true
"use strict";
var a = () => 42;
END
./bin/jshint use-strict-undefined.out.js
```