We're about to make it so that the compiler warns/errors if you use the
wrong iterator macro. Fix up a bunch of places where someone used the
wrong one before we break anything.
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17630>