protected void ShouldHaveErrorInType(string nestedTypeName)
 => InvalidAssemblyToProcessFixture.ShouldHaveErrorInType($"{InvalidAssembly}.{ClassName}", nestedTypeName);
 protected string ShouldHaveErrorNoSeqPoint(string methodName)
 => InvalidAssemblyToProcessFixture.ShouldHaveError($"{InvalidAssembly}.{ClassName}", methodName, false);