test: add a testcase for overpass comment remover test

tests/assets/overpassql/wizard_generated_beijing_restaurant_comment.overpassql

@@ -0,0 +1,14 @@
+/*
+This has been generated by the overpass-turbo wizard.
+The original search was:
+“amenity=restaurant in Beijing”
+*/
+[out:json][timeout:25];
+// fetch area “Beijing” to search in
+{{geocodeArea:Beijing}}->.searchArea;
+// gather results
+nwr["amenity"="restaurant"/*
+这里应该解释一下，食堂和餐馆使用了同样的标注模式因此暂时无法区分
+或许未来引入["amenity"="canteen"]之类的tag有主意更好的筛选
+*/](area.searchArea);
+out geom;// print results