move `call_shell` to misc1.c Move some fns to state.c Move some fns to option.c Move some fns to memline.c Move `vim_chdir*` fns to file_search.c Move some fns to new module, bytes.c Move some fns to fileio.c
s/ml_get_curline/get_cursor_line_ptr s/ml_get_cursor/get_cursor_pos_ptr