patch 8.1.1218: cannot set a directory for a tab page
Problem: Cannot set a directory for a tab page.
Solution: Add the tab-local directory. (Yegappan Lakshmanan, closes #4212)
diff --git a/src/proto/eval.pro b/src/proto/eval.pro
index 0e6182f..f501300 100644
--- a/src/proto/eval.pro
+++ b/src/proto/eval.pro
@@ -116,7 +116,7 @@
void ex_execute(exarg_T *eap);
win_T *find_win_by_nr(typval_T *vp, tabpage_T *tp);
win_T *find_win_by_nr_or_id(typval_T *vp);
-win_T *find_tabwin(typval_T *wvp, typval_T *tvp);
+win_T *find_tabwin(typval_T *wvp, typval_T *tvp, tabpage_T **ptp);
void getwinvar(typval_T *argvars, typval_T *rettv, int off);
void setwinvar(typval_T *argvars, typval_T *rettv, int off);
char_u *autoload_name(char_u *name);
diff --git a/src/proto/ex_docmd.pro b/src/proto/ex_docmd.pro
index 710f48b..9934d60 100644
--- a/src/proto/ex_docmd.pro
+++ b/src/proto/ex_docmd.pro
@@ -37,7 +37,7 @@
void tabpage_new(void);
void do_exedit(exarg_T *eap, win_T *old_curwin);
void free_cd_dir(void);
-void post_chdir(int local);
+void post_chdir(int tablocal, int winlocal);
void ex_cd(exarg_T *eap);
void do_sleep(long msec);
void ex_may_print(exarg_T *eap);