i965/fs: Don't emit SEL instructions for type-converting MOVs.
i965/fs: Don't emit SEL instructions for type-converting MOVs.

SEL can only convert between a few integer types, which we basically
never do.

Fixes fs/vs-double-uniform-array-direct-indirect-non-uniform-control-flow
Cc: 59f39c0db42d4479a46b02d4d2bc11120e37bb44@lists.freedesktop.org
Reviewed-by: Samuel Iglesias Gonsálvez <b753b212f30aed827c3eea2e437609dc37310153@igalia.com>
Acked-by: Francisco Jerez <5906ff32bdd9fd8db196f6ba5ad3afd6f9257ea5@riseup.net>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler