patch 8.1.2192: cannot easily fill the info popup asynchronously
Problem: Cannot easily fill the info popup asynchronously.
Solution: Add the "popuphidden" value to 'completeopt'. (closes #4924)
diff --git a/src/proto/ex_cmds.pro b/src/proto/ex_cmds.pro
index a4d60ba..3693cf4 100644
--- a/src/proto/ex_cmds.pro
+++ b/src/proto/ex_cmds.pro
@@ -35,7 +35,7 @@
char_u *get_old_sub(void);
void set_old_sub(char_u *val);
void free_old_sub(void);
-int prepare_tagpreview(int undo_sync, int use_previewpopup, int use_popup);
+int prepare_tagpreview(int undo_sync, int use_previewpopup, use_popup_T use_popup);
void ex_help(exarg_T *eap);
void ex_helpclose(exarg_T *eap);
char_u *check_help_lang(char_u *arg);