fix(utils): fix the counting logic of duplicate names (#401)

Co-authored-by: iawia002 <[email protected]>

utils/generators/golang/helper.go

@@ -489,10 +489,10 @@ func (n *nameContainer) proposeName(name string, typ api.TypeName) string {
 		name += "_"
 	}
 	index := n.names[name]
+	n.names[name]++
 	if index > 0 {
 		name += strconv.Itoa(index)
 	}
-	n.names[name]++
 	return name
 }