This had two regressions, using gl_PointSize and drawing triangles, and drawing points and triangles
with the same binary program.

TRAC #22526

Signed-off-by: Nicolas Capens
Signed-off-by: Shannon Woods
Author: Jamie Madill

git-svn-id: https://angleproject.googlecode.com/svn/branches/dx11proto@1853 736b8ea6-26fd-11df-bfd4-992fa37f6226