If-protect on_true and on_false in ast_ifthen since they can be NULL (contrary to ast_ternary where they can't)
If-protect on_true and on_false in ast_ifthen since they can be NULL (contrary to ast_ternary where they can't)

ignatenkobrain/gmqcc,111WARLOCK111/gmqcc,111WARLOCK111/gmqcc,ignatenkobrain/gmqcc