Add test filter selector followed by name selector (#96)

Author: gongfarmer

tests/filter.json

@@ -1910,6 +1910,20 @@
       "result": [],
       "result_paths": []
     },
+    {
+      "name": "followed by name selector",
+      "selector": "$[[email protected]==1].b.x",
+      "document": [
+        {
+          "a": 1,
+          "b": { "x": 2 }
+        }
+      ],
+      "result": [ 2 ],
+      "result_paths": [
+        "$[0]['b']['x']"
+      ]
+    },
     {
       "name": "relative non-singular query, index, equal",
       "selector": "$[?(@[0, 0]==42)]",
@@ -3381,4 +3395,4 @@
       ]
     }
   ]
-}
+}