patch 8.2.1297: when a test fails it's often not easy to see where
Problem: When a test fails it's often not easy to see what the call stack
is.
Solution: Add more entries from the call stack in the exception message.
diff --git a/src/proto/scriptfile.pro b/src/proto/scriptfile.pro
index fd4c104..00f1301 100644
--- a/src/proto/scriptfile.pro
+++ b/src/proto/scriptfile.pro
@@ -4,7 +4,7 @@
estack_T *estack_push_ufunc(ufunc_T *ufunc, long lnum);
int estack_top_is_ufunc(ufunc_T *ufunc, long lnum);
estack_T *estack_pop(void);
-char_u *estack_sfile(void);
+char_u *estack_sfile(int is_sfile);
void ex_runtime(exarg_T *eap);
int do_in_path(char_u *path, char_u *name, int flags, void (*callback)(char_u *fname, void *ck), void *cookie);
int do_in_runtimepath(char_u *name, int flags, void (*callback)(char_u *fname, void *ck), void *cookie);