Make IsTransformFeedback() return false before BindTransformFeedback()

The GL 4.3 an ES 3.0 specs say

   A transform feedback object is created by binding a name returned by
   GenTransformFeedbacks with the command
      void BindTransformFeedback( enum target, uint id );

Fixes arb_transform_feedback2-istransformfeedback and part of
es3conform's CoverageES30.test.

Reviewed-by: Jordan Justen <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>

0 files changed, 0 insertions, 0 deletions