patch 8.2.0056: execution stack is incomplete and inefficient Commit: https://github.com/vim/vim/commit/1a47ae32cdc19b0fd5a82e19fe5fddf45db1a506 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Dec 29 23:04:25 2019 +0100 patch 8.2.0056: execution stack is incomplete and inefficient Problem: Execution stack is incomplete and inefficient. Solution: Introduce a proper execution stack and use it instead of sourcing_name/sourcing_lnum. Create a string only when used.

/* auto/if_perl.c */
int perl_enabled(int verbose);
void perl_end(void);
void msg_split(char_u *s, int attr);
void perl_win_free(win_T *wp);
void perl_buf_free(buf_T *bp);
void ex_perl(exarg_T *eap);
void do_perleval(char_u *str, typval_T *rettv);
void ex_perldo(exarg_T *eap);