Optimize uniform handling by storing both decorated and undecorated names. Use a consistent naming scheme to clarify decorated/undecorated name usage.

TRAC #16567
Bug=136
Signed-off-by: Daniel Koch
Author: Nicolas Capens

git-svn-id: https://angleproject.googlecode.com/svn/trunk@759 736b8ea6-26fd-11df-bfd4-992fa37f6226