Edited Issue: Crash while creating a new C# project (whilst closing open Node.js project) [1847]

1. Open project referenced in #1845 (http://1drv.ms/1BQ9bsr). Unzip to 'C:\Users\Sara\Documents\Visual Studio 2013\Projects\'
2. In app.js: Press ctrl-space (isense won't pop up - see #1845), enter, ctrl-space, ctrl-Z until it's the original file (no changes)
3. Try creating new c# console app

VS will crash with following error in event viewer.

Application: devenv.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.InvalidOperationException
Stack:
at System.Collections.Concurrent.BlockingCollection`1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].TryAddWithNoTimeValidation(System.__Canon, Int32, System.Threading.CancellationToken)
at Microsoft.NodejsTools.Intellisense.TaskProvider.SendMessage(Microsoft.NodejsTools.Intellisense.WorkerMessage)
at Microsoft.NodejsTools.Intellisense.VsProjectAnalyzer.UpdateErrorsAndWarnings(Microsoft.NodejsTools.Analysis.IProjectEntry, Microsoft.VisualStudio.Text.ITextSnapshot, Microsoft.NodejsTools.Parsing.CollectingErrorSink)
at Microsoft.NodejsTools.Intellisense.VsProjectAnalyzer.ParseFile(Microsoft.NodejsTools.Analysis.IProjectEntry, System.String, System.IO.TextReader, Microsoft.NodejsTools.Analysis.IAnalysisCookie)
at Microsoft.NodejsTools.Intellisense.VsProjectAnalyzer+<>c__DisplayClass6.<EnqueueFile>b__5()
at Microsoft.NodejsTools.Intellisense.VsProjectAnalyzer+<>c__DisplayClass9.<EnqueWorker>b__8(System.Object)
at System.Threading.QueueUserWorkItemCallback.WaitCallback_Context(System.Object)
at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
at System.Threading.ThreadPoolWorkQueue.Dispatch()
at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback()