patch 8.1.1952: more functions can be used as a method

Problem:    More functions can be used as a method.
Solution:   Allow more functions to be used as a method.
diff --git a/src/evalfunc.c b/src/evalfunc.c
index 45b78e3..4561f08 100644
--- a/src/evalfunc.c
+++ b/src/evalfunc.c
@@ -584,15 +584,15 @@
     {"gettabinfo",	0, 1, FEARG_1,	  f_gettabinfo},
     {"gettabvar",	2, 3, FEARG_1,	  f_gettabvar},
     {"gettabwinvar",	3, 4, FEARG_1,	  f_gettabwinvar},
-    {"gettagstack",	0, 1, 0,	  f_gettagstack},
-    {"getwininfo",	0, 1, 0,	  f_getwininfo},
-    {"getwinpos",	0, 1, 0,	  f_getwinpos},
+    {"gettagstack",	0, 1, FEARG_1,	  f_gettagstack},
+    {"getwininfo",	0, 1, FEARG_1,	  f_getwininfo},
+    {"getwinpos",	0, 1, FEARG_1,	  f_getwinpos},
     {"getwinposx",	0, 0, 0,	  f_getwinposx},
     {"getwinposy",	0, 0, 0,	  f_getwinposy},
-    {"getwinvar",	2, 3, 0,	  f_getwinvar},
-    {"glob",		1, 4, 0,	  f_glob},
-    {"glob2regpat",	1, 1, 0,	  f_glob2regpat},
-    {"globpath",	2, 5, 0,	  f_globpath},
+    {"getwinvar",	2, 3, FEARG_1,	  f_getwinvar},
+    {"glob",		1, 4, FEARG_1,	  f_glob},
+    {"glob2regpat",	1, 1, FEARG_1,	  f_glob2regpat},
+    {"globpath",	2, 5, FEARG_2,	  f_globpath},
     {"has",		1, 1, 0,	  f_has},
     {"has_key",		2, 2, FEARG_1,	  f_has_key},
     {"haslocaldir",	0, 2, 0,	  f_haslocaldir},