Summary: XHPAST doesn't currently parse most PHP 5.4 stuff, but it does parse this. Warn about it.
Test Plan:
Unit tests, and:
Error (XHP35) Use Of PHP 5.4 Features
The f()[...] syntax was not introduced until PHP 5.4, but this codebase
targets an earlier version of PHP. You can rewrite this expression using
idx().
365 public function lintPHP54Features($root) {
366
367 if (false) {
>>> 368 id()[0];
^
369 }
370
Reviewers: alanh, vrana
Reviewed By: alanh
CC: aran
Differential Revision: https://secure.phabricator.com/D3291
