commit https://github.com/vim/vim/commit/8aefbe0ad5d05ee7225b20024b0f3023286ebd0f Author: Bram Moolenaar <Bram@vim.org> Date: Tue Feb 23 20:13:16 2016 +0100 patch 7.4.1405 Problem: Completion menu flickers. Solution: Delay showing the popup menu. (Shougo, Justin M. Keyes, closes https://github.com/vim/vim/issues/656)

/* if_lua.c */
int lua_enabled(int verbose);
void lua_end(void);
void ex_lua(exarg_T *eap);
void ex_luado(exarg_T *eap);
void ex_luafile(exarg_T *eap);
void lua_buffer_free(buf_T *o);
void lua_window_free(win_T *o);
void do_luaeval(char_u *str, typval_T *arg, typval_T *rettv);
int set_ref_in_lua(int copyID);
/* vim: set ft=c : */