patch 8.2.3031: no error if a function name starts with an underscore Commit: https://github.com/vim/vim/commit/22f17a29cd0b0cc3107dc6cd1d96c62eee52a7d9 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Jun 21 20:48:58 2021 +0200 patch 8.2.3031: no error if a function name starts with an underscore Problem: No error if a function name starts with an underscore. (Naohiro Ono) Solution: In Vim9 script disallow a function name starting with an underscore, as is mentioned in the help. (closes #8414)

/* json.c */
char_u *json_encode(typval_T *val, int options);
char_u *json_encode_nr_expr(int nr, typval_T *val, int options);
int json_decode(js_read_T *reader, typval_T *res, int options);
int json_find_end(js_read_T *reader, int options);
void f_js_decode(typval_T *argvars, typval_T *rettv);
void f_js_encode(typval_T *argvars, typval_T *rettv);
void f_json_decode(typval_T *argvars, typval_T *rettv);
void f_json_encode(typval_T *argvars, typval_T *rettv);
/* vim: set ft=c : */