Visual studio crashes with ArgumentException at CSharpSyntaxNode.ChildThatContainsPosition

[balajikris]

The scenario was typing C# code. I may have changed the name of some local variable as it looks like RenameTracking set off this whole thing.
Saved a dump at %internalshare%\dumps\737
Roslyn bits: 50219

$exception:
-------------
Specified argument was out of the range of valid values.
Parameter name: position

   at Microsoft.CodeAnalysis.CSharp.CSharpSyntaxNode.ChildThatContainsPosition(Int32 position) in F:\Builds\6272\Roslyn\Main-Signed-Release\src\Open\src\Compilers\CSharp\Portable\Syntax\CSharpSyntaxNode.cs:line 559
   at Microsoft.CodeAnalysis.CSharp.CSharpSyntaxNode.FindTokenInternal(Int32 position) in F:\Builds\6272\Roslyn\Main-Signed-Release\src\Open\src\Compilers\CSharp\Portable\Syntax\CSharpSyntaxNode.cs:line 629
   at Microsoft.CodeAnalysis.CSharp.CSharpSyntaxNode.FindToken(Int32 position, Boolean findInsideTrivia) in F:\Builds\6272\Roslyn\Main-Signed-Release\src\Open\src\Compilers\CSharp\Portable\Syntax\CSharpSyntaxNode.cs:line 725
   at Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax.Blender.ExtendToAffectedRange(CSharpSyntaxNode oldTree, TextChangeRange changeRange) in F:\Builds\6272\Roslyn\Main-Signed-Release\src\Open\src\Compilers\CSharp\Portable\Parser\Blender.cs:line 130
   at Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax.Blender..ctor(Lexer lexer, CSharpSyntaxNode oldTree, IEnumerable`1 changes) in F:\Builds\6272\Roslyn\Main-Signed-Release\src\Open\src\Compilers\CSharp\Portable\Parser\Blender.cs:line 60
   at Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax.SyntaxParser..ctor(Lexer lexer, LexerMode mode, CSharpSyntaxNode oldTree, IEnumerable`1 changes, Boolean allowModeReset, Boolean preLexIfNotIncremental, CancellationToken cancellationToken) in F:\Builds\6272\Roslyn\Main-Signed-Release\src\Open\src\Compilers\CSharp\Portable\Parser\SyntaxParser.cs:line 54
   at Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax.LanguageParser..ctor(Lexer lexer, CSharpSyntaxNode oldTree, IEnumerable`1 changes, LexerMode lexerMode, CancellationToken cancellationToken) in F:\Builds\6272\Roslyn\Main-Signed-Release\src\Open\src\Compilers\CSharp\Portable\Parser\LanguageParser.cs:line 51
   at Microsoft.CodeAnalysis.CSharp.CSharpSyntaxTree.WithChanges(SourceText newText, IReadOnlyList`1 changes) in F:\Builds\6272\Roslyn\Main-Signed-Release\src\Open\src\Compilers\CSharp\Portable\Syntax\CSharpSyntaxTree.cs:line 453
   at Microsoft.CodeAnalysis.CSharp.CSharpSyntaxTree.WithChangedText(SourceText newText) in F:\Builds\6272\Roslyn\Main-Signed-Release\src\Open\src\Compilers\CSharp\Portable\Syntax\CSharpSyntaxTree.cs:line 427
   at Microsoft.CodeAnalysis.DocumentState.<IncrementallyParseTreeAsync>d__9.MoveNext() in F:\Builds\6272\Roslyn\Main-Signed-Release\src\Open\src\Workspaces\Core\Portable\Workspace\Solution\DocumentState.cs:line 149

crashing worker thread's stack:
------------------------------------
    Microsoft.CodeAnalysis.Workspaces.dll!Microsoft.CodeAnalysis.ErrorReporting.FatalError.Report(System.Exception exception, System.Action<System.Exception> handler) Line 155 C#
    Microsoft.CodeAnalysis.Workspaces.dll!Microsoft.CodeAnalysis.DocumentState.IncrementallyParseTreeAsync(Roslyn.Utilities.ValueSource<Microsoft.CodeAnalysis.TreeAndVersion> oldTreeSource, Roslyn.Utilities.ValueSource<Microsoft.CodeAnalysis.TextAndVersion> newTextSource, System.Threading.CancellationToken cancellationToken) Line 152 C#
    [Resuming Async Method] 
    [Native to Managed Transition]  
>   Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.CSharpSyntaxNode.ChildThatContainsPosition(int position) Line 559   C#
    Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.CSharpSyntaxNode.FindTokenInternal(int position) Line 629   C#
    Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.CSharpSyntaxNode.FindToken(int position, bool findInsideTrivia) Line 722    C#
    Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax.Blender.ExtendToAffectedRange(Microsoft.CodeAnalysis.CSharp.CSharpSyntaxNode oldTree, Microsoft.CodeAnalysis.Text.TextChangeRange changeRange) Line 130   C#
    Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax.Blender.Blender(Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax.Lexer lexer, Microsoft.CodeAnalysis.CSharp.CSharpSyntaxNode oldTree, System.Collections.Generic.IEnumerable<Microsoft.CodeAnalysis.Text.TextChangeRange> changes) Line 61 C#
    Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax.SyntaxParser.SyntaxParser(Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax.Lexer lexer, Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax.LexerMode mode, Microsoft.CodeAnalysis.CSharp.CSharpSyntaxNode oldTree, System.Collections.Generic.IEnumerable<Microsoft.CodeAnalysis.Text.TextChangeRange> changes, bool allowModeReset, bool preLexIfNotIncremental, System.Threading.CancellationToken cancellationToken) Line 54   C#
    Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax.LanguageParser.LanguageParser(Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax.Lexer lexer, Microsoft.CodeAnalysis.CSharp.CSharpSyntaxNode oldTree, System.Collections.Generic.IEnumerable<Microsoft.CodeAnalysis.Text.TextChangeRange> changes, Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax.LexerMode lexerMode, System.Threading.CancellationToken cancellationToken) Line 54    C#
    Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.CSharpSyntaxTree.WithChanges(Microsoft.CodeAnalysis.Text.SourceText newText, System.Collections.Generic.IReadOnlyList<Microsoft.CodeAnalysis.Text.TextChangeRange> changes) Line 453    C#
    Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.CSharpSyntaxTree.WithChangedText(Microsoft.CodeAnalysis.Text.SourceText newText) Line 427   C#
    Microsoft.CodeAnalysis.Workspaces.dll!Microsoft.CodeAnalysis.DocumentState.IncrementallyParseTreeAsync(Roslyn.Utilities.ValueSource<Microsoft.CodeAnalysis.TreeAndVersion> oldTreeSource, Roslyn.Utilities.ValueSource<Microsoft.CodeAnalysis.TextAndVersion> newTextSource, System.Threading.CancellationToken cancellationToken) Line 149 C#
    Microsoft.CodeAnalysis.Workspaces.dll!Microsoft.CodeAnalysis.DocumentState.CreateLazyIncrementallyParsedTree.AnonymousMethod__0(System.Threading.CancellationToken c) Line 129  C#
    Microsoft.CodeAnalysis.Workspaces.dll!Roslyn.Utilities.AsyncLazy<Microsoft.CodeAnalysis.TreeAndVersion>.StartAsynchronousComputation(Roslyn.Utilities.AsyncLazy<Microsoft.CodeAnalysis.TreeAndVersion>.AsynchronousComputationToStart computationToStart, Roslyn.Utilities.AsyncLazy<Microsoft.CodeAnalysis.TreeAndVersion>.Request requestToCompleteSynchronously) Line 380    C#
    Microsoft.CodeAnalysis.Workspaces.dll!Roslyn.Utilities.AsyncLazy<Microsoft.CodeAnalysis.TreeAndVersion>.GetValueAsync(System.Threading.CancellationToken cancellationToken) Line 333    C#
    Microsoft.CodeAnalysis.Workspaces.dll!Microsoft.CodeAnalysis.DocumentState.GetSyntaxTreeAsync(System.Threading.CancellationToken cancellationToken) Line 477    C#
    Microsoft.CodeAnalysis.Workspaces.dll!Microsoft.CodeAnalysis.Document.GetSyntaxTreeAsync(System.Threading.CancellationToken cancellationToken) Line 193 C#
    Microsoft.CodeAnalysis.EditorFeatures.dll!Microsoft.CodeAnalysis.Editor.Implementation.RenameTracking.RenameTrackingTaggerProvider.TrackingSession.DetermineIfRenamableIdentifierAsync(Microsoft.VisualStudio.Text.SnapshotSpan snapshotSpan, bool initialCheck) Line 136   C#
    Microsoft.CodeAnalysis.EditorFeatures.dll!Microsoft.CodeAnalysis.Editor.Implementation.RenameTracking.RenameTrackingTaggerProvider.TrackingSession..ctor.AnonymousMethod__0() Line 66   C#
    mscorlib.dll!System.Threading.Tasks.Task<System.Threading.Tasks.Task<Microsoft.CodeAnalysis.Editor.Implementation.RenameTracking.RenameTrackingTaggerProvider.TriggerIdentifierKind>>.InnerInvoke() Line 680    C#

[Pilchie]

This is a dupe of something @mattwar has a PR out for.

[balajikris]

Ah, thanks dupe of #605