It's not at all clear how this pass should work with real function calls (if at
all), but at least this is enough to handle collections of self-contained
functions which vtn_bindgen2 wants.
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33099>