glsl: Convert ast_to_hir to the util hash table

V2: Rebase to the adaption of new hashing functions

V3: move previous_label declaration to where it is used
    (Timothy Arceri)

Signed-off-by: Thomas Helland <thomashelland90@gmail.com>
Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>
1 file changed