False positives for TestInitialize/TestCleanup analyzers

[Evangelink]

Describe the bug

TestInitialize/TestCleanup on a generic class is a valid scenario.

Steps To Reproduce

[TestClass]
    public class UnitTest1 : Base<int>
    {
        [TestMethod]
        public void TestMethod1()
        {
        }
    }

    public class Base<T>
    {
        [TestInitialize]
        public void Init()
        {
        }
    }