Adds a large sum a instructions to the a3xx compiler.

For integer instructions we have 28 instructions.
Adds 4 floating point compare instructions
Adds the KILL_IF instructions.
The KILL_IF instruction could potentially be merged in to the regular KILL instruction.
Was a pain to do so so I've left it separated for cleaniless.

If GLSL 1.30 is enabled, this allows the GLSL 1.30 piglits to have a completion amount of 432/641.