patch 8.1.1452: line and col property of popup windows not properly checked
Problem: Line and col property of popup windows not properly checked.
Solution: Check for "+" or "-" sign.
diff --git a/src/proto/dict.pro b/src/proto/dict.pro
index 688255c..d482025 100644
--- a/src/proto/dict.pro
+++ b/src/proto/dict.pro
@@ -25,6 +25,7 @@
dictitem_T *dict_find(dict_T *d, char_u *key, int len);
char_u *dict_get_string(dict_T *d, char_u *key, int save);
varnumber_T dict_get_number(dict_T *d, char_u *key);
+varnumber_T dict_get_number_check(dict_T *d, char_u *key);
char_u *dict2string(typval_T *tv, int copyID, int restore_copyID);
int dict_get_tv(char_u **arg, typval_T *rettv, int evaluate);
void dict_extend(dict_T *d1, dict_T *d2, char_u *action);