facebook/hhvm — pull request #3954 by Majkl578 (2014-10-11 00:18:52+00:00)
Title: Adjust min/max warnings for single parameter with Zend

Zend is a bit inconsistent with handling invalid parameters passed to min()/max():
```
min(1) - null + warning
min([]) - false + warning
min(new stdclass) - null + warning
```
This change retains original behavior. Makes 8 bad zend tests happy.