title: phpStorm 7 Code completion stopped working
body: <p>I have been working with phpStorm and it had suddenly stopped showing suggestions for code completion. When i do Ctrl + space its behaving correctly by showing all the possible options in a drop down.</p>
  
  <p>I have followed the below link and have did invalidate cache but still of no use.
  <a href="https://stackoverflow.com/questions/14727557/phpstorm-code-completion-doesnt-show-core-classes-extensions">PhpStorm code completion doesn&#39;t show core classes/extensions</a></p>
  
  <p>My Setup is:
  OS: Mac - 10.9.2 (Mavericks)
  PHPStorm: 7.1.3</p>