[Piglit] [PATCH] Add new test for calling glGenQueries/glDeleteQueries with an active query

[Brian Paul]

On 10/28/2013 11:59 AM, Carl Worth wrote:
> It is legal to gen and delete a query while another query is active.
>
> It is also legal to delete the currently active object.
>
> Ensure that both of these operations can be performed without any error,
> (as well as ensuring that glEndQuery on a deleted query does generate
> an error).

Reviewed-by: Brian Paul <brianp at vmware.com>
Tested-by: Brian Paul <brianp at vmware.com>

NVIDIA's 325.15 driver fails on the error check on line 96, but that 
looks like their bug.

Thanks for making all the changes, Carl.

-Brian