Filters like IN cannot process objects and arrays inside arrays

[xceptance-dan]

The issue can be reproduced by using the InEvaluator (IN filter) but other filters are affected as well. Below is a simplified JSON structure to show the problem.

[
    {
        "id": 1,
        "array": 
        [
            "a",
            {"b":"c"}
        ]
    }
]

Trying to get the object, which contains an array including the String "a" with:
$.*[?('a' in @.array)]

results in the following error:
Could not determine value type

This is because the toValueNode method in ValueNode.java does not deal properly with objects or arrays.

[xceptance-dan]

Here's some code to quickly test the issue:
JsonPath.read("[{\"id\":1,\"array\":[\"a\",{\"b\":\"c\"}]}]", "$.*[?(\"a\" in @.array)]");