Give sorted configs a unique ID without changing the original set
TRAC #12323
This fixes building on Visual C++ 2010, which has const iterators for STL sets as specified by C++0x.
Signed-off-by: Shannon Woods
Singed-off-by: Daniel Koch

Author:    Nicolas Capens

git-svn-id: https://angleproject.googlecode.com/svn/trunk@302 736b8ea6-26fd-11df-bfd4-992fa37f6226
3 files changed