i965: Enable 64-bit integer support for almost all unary and binary operations
i965: Enable 64-bit integer support for almost all unary and binary operations

Integer comparison functions (e.g., nir_op_ilt) are handled in the next
commit.

Signed-off-by: Ian Romanick <2b237cafb16dc45038e85df6c85e74e6d899eba9@intel.com>
Reviewed-by: Matt Turner <789b315743a28dd066a4ba1459c35951c291d8a6@gmail.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler