public ProfileEventListenerBase(Guid targetSourceGuid, EventLevel level, ClrRuntimeEventKeywords keywords)
        {
            // Store the arguments
            _targetSourceGuid = targetSourceGuid;
            _level            = level;
            _keywords         = (EventKeywords)(long)keywords;

            LoadSourceList();
        }
        // .ctor call after OnEventSourceCreated. https://github.com/Microsoft/ApplicationInsights-dotnet/issues/1106
        // https://github.com/dotnet/corefx/blob/master/src/Common/tests/System/Diagnostics/Tracing/TestEventListener.cs#L40
        public ProfileEventListenerBase(string targetSourceName, EventLevel level, ClrRuntimeEventKeywords keywords)
        {
            // Store the arguments
            _targetSourceName = targetSourceName;
            _level            = level;
            _keywords         = (EventKeywords)(long)keywords;

            LoadSourceList();
        }