patch 8.2.4487: Vim9: cannot compare with v:null Commit: https://github.com/vim/vim/commit/7a2222487507eb13cccdb9a66397092775d62b8c Author: Bram Moolenaar <Bram@vim.org> Date: Tue Mar 1 19:23:24 2022 +0000 patch 8.2.4487: Vim9: cannot compare with v:null Problem: Vim9: cannot compare with v:null. Solution: Allow comparing anything with v:null. (closes https://github.com/vim/vim/issues/9866)

/* sound.c */
int has_any_sound_callback(void);
int has_sound_callback_in_queue(void);
void invoke_sound_callback(void);
void f_sound_playevent(typval_T *argvars, typval_T *rettv);
void f_sound_playfile(typval_T *argvars, typval_T *rettv);
void f_sound_stop(typval_T *argvars, typval_T *rettv);
void f_sound_clear(typval_T *argvars, typval_T *rettv);
void sound_free(void);
/* vim: set ft=c : */