Crash when pasting multiple tokens into a namespace rename

[SLaks]

Source:

namespace A { }

Enter rename for A, then paste A.B.

'Microsoft.CodeAnalysis.CSharp.Syntax.QualifiedNameSyntax' to type 'Microsoft.CodeAnalysis.CSharp.Syntax.IdentifierNameSyntax'.

>   Microsoft.CodeAnalysis.CSharp.Workspaces.dll!Microsoft.CodeAnalysis.CSharp.Rename.CSharpRenameConflictLanguageService.RenameRewriter.RenameToken(Microsoft.CodeAnalysis.SyntaxToken oldToken, Microsoft.CodeAnalysis.SyntaxToken newToken, string prefix, string suffix)    Unknown
    Microsoft.CodeAnalysis.CSharp.Workspaces.dll!Microsoft.CodeAnalysis.CSharp.Rename.CSharpRenameConflictLanguageService.RenameRewriter.RenameAndAnnotateAsync(Microsoft.CodeAnalysis.SyntaxToken token, Microsoft.CodeAnalysis.SyntaxToken newToken, bool isRenameLocation, bool isOldText)   Unknown
    mscorlib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<Microsoft.CodeAnalysis.SyntaxToken>.Start<Microsoft.CodeAnalysis.CSharp.Rename.CSharpRenameConflictLanguageService.RenameRewriter.<RenameAndAnnotateAsync>d__36>(ref Microsoft.CodeAnalysis.CSharp.Rename.CSharpRenameConflictLanguageService.RenameRewriter.<RenameAndAnnotateAsync>d__36 stateMachine)    Unknown
    Microsoft.CodeAnalysis.CSharp.Workspaces.dll!Microsoft.CodeAnalysis.CSharp.Rename.CSharpRenameConflictLanguageService.RenameRewriter.RenameAndAnnotateAsync(Microsoft.CodeAnalysis.SyntaxToken token, Microsoft.CodeAnalysis.SyntaxToken newToken, bool isRenameLocation, bool isOldText)   Unknown
    Microsoft.CodeAnalysis.CSharp.Workspaces.dll!Microsoft.CodeAnalysis.CSharp.Rename.CSharpRenameConflictLanguageService.RenameRewriter.VisitToken(Microsoft.CodeAnalysis.SyntaxToken token)   Unknown
    Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.CSharpSyntaxRewriter.VisitIdentifierName(Microsoft.CodeAnalysis.CSharp.Syntax.IdentifierNameSyntax node)    Unknown
    Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.Syntax.IdentifierNameSyntax.Accept<System.__Canon>(Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor<System.__Canon> visitor)   Unknown
    Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor<Microsoft.CodeAnalysis.SyntaxNode>.Visit(Microsoft.CodeAnalysis.SyntaxNode node)    Unknown
    Microsoft.CodeAnalysis.CSharp.Workspaces.dll!Microsoft.CodeAnalysis.CSharp.Rename.CSharpRenameConflictLanguageService.RenameRewriter.Visit(Microsoft.CodeAnalysis.SyntaxNode node)  Unknown
    Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.CSharpSyntaxRewriter.VisitQualifiedName(Microsoft.CodeAnalysis.CSharp.Syntax.QualifiedNameSyntax node)  Unknown
    Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.Syntax.QualifiedNameSyntax.Accept<System.__Canon>(Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor<System.__Canon> visitor)    Unknown
    Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor<Microsoft.CodeAnalysis.SyntaxNode>.Visit(Microsoft.CodeAnalysis.SyntaxNode node)    Unknown
    Microsoft.CodeAnalysis.CSharp.Workspaces.dll!Microsoft.CodeAnalysis.CSharp.Rename.CSharpRenameConflictLanguageService.RenameRewriter.Visit(Microsoft.CodeAnalysis.SyntaxNode node)  Unknown
    Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.CSharpSyntaxRewriter.VisitNamespaceDeclaration(Microsoft.CodeAnalysis.CSharp.Syntax.NamespaceDeclarationSyntax node)    Unknown
    Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.Syntax.NamespaceDeclarationSyntax.Accept<System.__Canon>(Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor<System.__Canon> visitor) Unknown
    Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor<Microsoft.CodeAnalysis.SyntaxNode>.Visit(Microsoft.CodeAnalysis.SyntaxNode node)    Unknown
    Microsoft.CodeAnalysis.CSharp.Workspaces.dll!Microsoft.CodeAnalysis.CSharp.Rename.CSharpRenameConflictLanguageService.RenameRewriter.Visit(Microsoft.CodeAnalysis.SyntaxNode node)  Unknown
    Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.CSharpSyntaxRewriter.VisitListElement<Microsoft.CodeAnalysis.CSharp.Syntax.MemberDeclarationSyntax>(Microsoft.CodeAnalysis.CSharp.Syntax.MemberDeclarationSyntax node)  Unknown
    Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.CSharpSyntaxRewriter.VisitList<Microsoft.CodeAnalysis.CSharp.Syntax.MemberDeclarationSyntax>(Microsoft.CodeAnalysis.SyntaxList<Microsoft.CodeAnalysis.CSharp.Syntax.MemberDeclarationSyntax> list)  Unknown
    Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.CSharpSyntaxRewriter.VisitCompilationUnit(Microsoft.CodeAnalysis.CSharp.Syntax.CompilationUnitSyntax node)  Unknown
    Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.Syntax.CompilationUnitSyntax.Accept<System.__Canon>(Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor<System.__Canon> visitor)  Unknown
    Microsoft.CodeAnalysis.CSharp.dll!Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor<Microsoft.CodeAnalysis.SyntaxNode>.Visit(Microsoft.CodeAnalysis.SyntaxNode node)    Unknown
    Microsoft.CodeAnalysis.CSharp.Workspaces.dll!Microsoft.CodeAnalysis.CSharp.Rename.CSharpRenameConflictLanguageService.RenameRewriter.Visit(Microsoft.CodeAnalysis.SyntaxNode node)  Unknown
    Microsoft.CodeAnalysis.CSharp.Workspaces.dll!Microsoft.CodeAnalysis.CSharp.Rename.CSharpRenameConflictLanguageService.AnnotateAndRename(Microsoft.CodeAnalysis.Rename.RenameRewriterParameters parameters)  Unknown

[SLaks]

This appears to be from http://source.roslyn.io/#Microsoft.CodeAnalysis.CSharp.Workspaces/Rename/CSharpRenameRewriterLanguageService.cs,584

[Pilchie]

@dpoeschl Just checked in a fix for this a couple of days ago.

[Pilchie]

Duplicate of #1031.