Fix field type collection when meeting T[] or Generic<T> fields

[UlyssesWu]

The commit 9d8e950 is an uncomplete fix due to lack consideration of array and generic instance type fields in a generic base class. This commit will get it fixed.

Can be examined with this code:

abstract class Generic<T>
{
  T[] Field1;
  List<T> Field2;
}

class GenericString : Generic<string>
{
  [IFix.Patch]
  public void Test()
  {
    Field1 = new string[] {"Test"};
    Field2 = new List<string> {"Test"};
    Debug.Log(Field1[0]);
    Debug.Log(Field2[0]);
  }
}

[tencent-adm]

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[UlyssesWu]

Thank you for your submission, we really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.

Of course I REFUSE to sign. 😤
That's to say, I do NOT grant Copyright or Patent license to Tencent, regardless of whether this PR got merged, or the maintainers committed code referenced to my code.