patch 8.2.3911: Vim9: type check for filter() does not accept unknown Commit: https://github.com/vim/vim/commit/ef8f04b1d1daf2e0be8fa38dedcae84ebfc5ffb4 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Dec 27 12:29:19 2021 +0000 patch 8.2.3911: Vim9: type check for filter() does not accept unknown Problem: Vim9: type check for filter() does not accept unknown. Solution: Also accept unknown for the return type. (closes https://github.com/vim/vim/issues/9413)

/* if_tcl.c */
void vim_tcl_init(char *arg);
void vim_tcl_finalize(void);
int tcl_enabled(int verbose);
void tcl_end(void);
void ex_tcl(exarg_T *eap);
void ex_tclfile(exarg_T *eap);
void ex_tcldo(exarg_T *eap);
void tcl_buffer_free(buf_T *buf);
void tcl_window_free(win_T *win);
/* vim: set ft=c : */