[Piglit] [PATCH 0/2] Second round of GLSL1.30-without-GL3 changes

[Chris Forbes]

This series relaxes the version requirement in the textureSize/texelFetch
tests to allow GLSL 1.30 on GL2.1 + EXT_gpu_shader4, and adjusts gl.spec
to assign all the EXT_gpu_shader4 functions to that extension, rather than
having half of them assigned to NV_* extensions.

The second patch might be doing it completely wrong -- is there a better way?
I couldn't find a precedent in gl.spec where an extension function is exposed
by multiple extensions.

With this series, i965 Gen5 is up to 1944/2004 GLSL 1.30 piglits with
GLSL 1.30 and EXT_gpu_shader4 enabled.