[Piglit] [PATCH 00/11] Add tests for MESA_shader_integer_functions

[Ian Romanick]

These are mostly clones of existing ARB_gpu_shader5 tests.  A few of the
positive tests are converted to negative tests for features in
ARB_gpu_shader5 but not in MESA_shader_interger_functions.

I suspect that patch 2 is too large to make it to the mailing list, but
the rest should be fine.

The tests are also available in

https://cgit.freedesktop.org/~idr/piglit/log/?h=MESA_shader_integer_functions