Use PHP7 array syntax
PHP now allows the [] syntax for arrays instead of array().
We should make the change and use this new syntax in FD, and adapt our code review profile to detect uses of the old syntax.
Advantages:
- less verbose for small and empty arrays
- clear indication that we are closing an array and not a function on multilines arrays
- symmetry with new list syntax (in PHP 7.1)
To upload designs, you'll need to enable LFS. More information