134c74e301
Redundant with the texture operation descriptor, but we don't want to parse that in the rest of the compiler. Handling it as a pseudo-modifier lets us share a code path with TEXS. Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11733>