Mesa: tag gles3-syncobj-v1: Sync Object changes for gles3conform

[Carl Worth]

Module: Mesa
Branch: refs/tags/gles3-syncobj-v1
Tag:    6ceec2dc25f251643405c7c122ca3fc848c4f25b
URL:    http://cgit.freedesktop.org/mesa/mesa/tag/?id=6ceec2dc25f251643405c7c122ca3fc848c4f25b

Tagger: Jordan Justen <jordan.l.justen at intel.com>
Date:   Tue Dec  4 15:40:33 2012 -0800

Sync Object changes for gles3conform

* main/set.c provides support for tracking a set of pointers.
* Prevent crashes when an invalid sync object pointer is sent
  to sync object functions.
  * Valid pointers are now tracked via a main/set.c instance.
* Change error value generated when an invalid sync object is
  used. (GL_INVALID_OPERATION => GL_INVALID_VALUE)