René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"nullref in SpecializedNamespace.get_Overloads","articleBody":"Seeing this one pop up. It looks like the checks on `_original` being null are not consistent in this file.\r\n\r\nAlso, the statements ending in `?.MaybeEnumerate()` are likely not needed either. ripgrepping shows:\r\n\r\n```\r\n$ rg '\\?\\.MaybeEnumerate'\r\nsrc\\Analysis\\Engine\\Impl\\ModuleAnalysis.cs\r\n356:            if (v.Variable?.Types?.MaybeEnumerate().FirstOrDefault() is ParameterInfo) {\r\n\r\nsrc\\Analysis\\Engine\\Impl\\Values\\SpecializedNamespace.cs\r\n212:        public override IEnumerable\u003cILocationInfo\u003e Locations =\u003e _original?.Locations?.MaybeEnumerate();\r\n220:        internal override IEnumerable\u003cILocationInfo\u003e References =\u003e _original.References?.MaybeEnumerate();\r\n```\r\n\r\nI have a fix ready, just making this for tracking.","author":{"url":"https://github.com/jakebailey","@type":"Person","name":"jakebailey"},"datePublished":"2018-12-03T20:37:13.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/449/python-language-server/issues/449"}