vim-patch:8.1.0475: memory not freed on exit when quit in autocmd

Problem:    Memory not freed on exit when quit in autocmd.
Solution:   Remember funccal stack when executing autocmd.
https://github.com/vim/vim/commit/27e80c885bcb5c5cf6a6462d71d6c81b06ba2451

1 files changed, 6 insertions, 5 deletions

diff --git a/src/nvim/fileio.c b/src/nvim/fileio.c
index 2335aba6dd..f29304867a 100644
--- a/src/nvim/fileio.c
+++ b/src/nvim/fileio.c
@@ -6736,7 +6736,6 @@ static bool apply_autocmds_group(event_T event, char_u *fname, char_u *fname_io,
   static int nesting = 0;
   AutoPatCmd patcmd;
   AutoPat     *ap;
-  void        *save_funccalp;
   char_u      *save_cmdarg;
   long save_cmdbang;
   static int filechangeshell_busy = FALSE;
@@ -6926,8 +6925,9 @@ static bool apply_autocmds_group(event_T event, char_u *fname, char_u *fname_io,
   if (do_profiling == PROF_YES)
     prof_child_enter(&wait_time);     /* doesn't count for the caller itself */
 
-  /* Don't use local function variables, if called from a function */
-  save_funccalp = save_funccal();
+  // Don't use local function variables, if called from a function.
+  funccal_entry_T funccal_entry;
+  save_funccal(&funccal_entry);
 
   /*
    * When starting to execute autocommands, save the search patterns.
@@ -7016,9 +7016,10 @@ static bool apply_autocmds_group(event_T event, char_u *fname, char_u *fname_io,
   autocmd_bufnr = save_autocmd_bufnr;
   autocmd_match = save_autocmd_match;
   current_sctx = save_current_sctx;
-  restore_funccal(save_funccalp);
-  if (do_profiling == PROF_YES)
+  restore_funccal();
+  if (do_profiling == PROF_YES) {
     prof_child_exit(&wait_time);
+  }
   KeyTyped = save_KeyTyped;
   xfree(fname);
   xfree(sfname);