C# -> VB: Conversion for ParenthesizedVariableDesignation not implemented

[RussellSmith2]

Input code

namespace ICSharpCode.CodeConverter.Shared
{
    public class SolutionConverter
    {
        private static string ApplyReplacements(string originalText, IEnumerable<(string, string)> replacements)
        {
            foreach (var (oldValue, newValue) in replacements)
            {
                originalText = Regex.Replace(originalText, oldValue, newValue, RegexOptions.IgnoreCase);
            }

            return originalText;
        }
    }
}

Erroneous output

CONVERSION ERROR: Conversion for ParenthesizedVariableDesignation not implemented, please report this issue in '(oldValue, newValue)' at character 240
   at ICSharpCode.CodeConverter.VB.NodesVisitor.DefaultVisit(SyntaxNode node)
   at Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor`1.VisitParenthesizedVariableDesignation(ParenthesizedVariableDesignationSyntax node)
   at ICSharpCode.CodeConverter.VB.NodesVisitor.VisitParenthesizedVariableDesignation(ParenthesizedVariableDesignationSyntax node)
   at Microsoft.CodeAnalysis.CSharp.Syntax.ParenthesizedVariableDesignationSyntax.Accept[TResult](CSharpSyntaxVisitor`1 visitor)
   at Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor`1.Visit(SyntaxNode node)
   at ICSharpCode.CodeConverter.VB.CommentConvertingNodesVisitor.DefaultVisit(SyntaxNode node)
   at Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor`1.VisitParenthesizedVariableDesignation(ParenthesizedVariableDesignationSyntax node)
   at Microsoft.CodeAnalysis.CSharp.Syntax.ParenthesizedVariableDesignationSyntax.Accept[TResult](CSharpSyntaxVisitor`1 visitor)
   at ICSharpCode.CodeConverter.VB.NodesVisitor.VisitDeclarationExpression(DeclarationExpressionSyntax node)
   at Microsoft.CodeAnalysis.CSharp.Syntax.DeclarationExpressionSyntax.Accept[TResult](CSharpSyntaxVisitor`1 visitor)
   at ICSharpCode.CodeConverter.VB.CommonConversions.ConvertToVariableDeclarator(DeclarationExpressionSyntax des)
   at System.Linq.Enumerable.WhereSelectListIterator`2.MoveNext()
   at System.Linq.Enumerable.<ConcatIterator>d__59`1.MoveNext()
   at Microsoft.CodeAnalysis.VisualBasic.SyntaxFactory.SeparatedList[TNode](IEnumerable`1 nodes)
   at ICSharpCode.CodeConverter.VB.CommonConversions.ConvertToDeclarationStatement(List`1 des, List`1 isPatternExpressions)
   at ICSharpCode.CodeConverter.VB.CommonConversions.InsertRequiredDeclarations(SyntaxList`1 convertedStatements, CSharpSyntaxNode originaNode)
   at ICSharpCode.CodeConverter.VB.CommonConversions.ConvertStatement(StatementSyntax statement, CSharpSyntaxVisitor`1 methodBodyVisitor)
   at ICSharpCode.CodeConverter.VB.CommonConversions.<>c__DisplayClass5_0.<ConvertStatements>b__0(StatementSyntax s)
   at System.Linq.Enumerable.<SelectManyIterator>d__17`2.MoveNext()
   at Microsoft.CodeAnalysis.SyntaxList`1.CreateNode(IEnumerable`1 nodes)
   at Microsoft.CodeAnalysis.SyntaxList`1..ctor(IEnumerable`1 nodes)
   at Microsoft.CodeAnalysis.VisualBasic.SyntaxFactory.List[TNode](IEnumerable`1 nodes)
   at ICSharpCode.CodeConverter.VB.CommonConversions.ConvertStatements(SyntaxList`1 statements, MethodBodyVisitor iteratorState)
   at ICSharpCode.CodeConverter.VB.CommonConversions.ConvertBody(BlockSyntax body, ArrowExpressionClauseSyntax expressionBody, MethodBodyVisitor iteratorState)
   at ICSharpCode.CodeConverter.VB.NodesVisitor.VisitMethodDeclaration(MethodDeclarationSyntax node)
   at Microsoft.CodeAnalysis.CSharp.Syntax.MethodDeclarationSyntax.Accept[TResult](CSharpSyntaxVisitor`1 visitor)
   at Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor`1.Visit(SyntaxNode node)
   at ICSharpCode.CodeConverter.VB.CommentConvertingNodesVisitor.DefaultVisit(SyntaxNode node)
   at Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor`1.VisitMethodDeclaration(MethodDeclarationSyntax node)
   at Microsoft.CodeAnalysis.CSharp.Syntax.MethodDeclarationSyntax.Accept[TResult](CSharpSyntaxVisitor`1 visitor)
   at ICSharpCode.CodeConverter.VB.NodesVisitor.<VisitClassDeclaration>b__23_0(MemberDeclarationSyntax m)
   at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()
   at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
   at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
   at ICSharpCode.CodeConverter.VB.NodesVisitor.VisitClassDeclaration(ClassDeclarationSyntax node)
   at Microsoft.CodeAnalysis.CSharp.Syntax.ClassDeclarationSyntax.Accept[TResult](CSharpSyntaxVisitor`1 visitor)
   at Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor`1.Visit(SyntaxNode node)
   at ICSharpCode.CodeConverter.VB.CommentConvertingNodesVisitor.DefaultVisit(SyntaxNode node)
   at Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor`1.VisitClassDeclaration(ClassDeclarationSyntax node)
   at Microsoft.CodeAnalysis.CSharp.Syntax.ClassDeclarationSyntax.Accept[TResult](CSharpSyntaxVisitor`1 visitor)
   at ICSharpCode.CodeConverter.VB.NodesVisitor.<VisitNamespaceDeclaration>b__21_0(MemberDeclarationSyntax m)
   at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()
   at Microsoft.CodeAnalysis.SyntaxList`1.CreateNode(IEnumerable`1 nodes)
   at Microsoft.CodeAnalysis.SyntaxList`1..ctor(IEnumerable`1 nodes)
   at Microsoft.CodeAnalysis.VisualBasic.SyntaxFactory.List[TNode](IEnumerable`1 nodes)
   at ICSharpCode.CodeConverter.VB.NodesVisitor.VisitNamespaceDeclaration(NamespaceDeclarationSyntax node)
   at Microsoft.CodeAnalysis.CSharp.Syntax.NamespaceDeclarationSyntax.Accept[TResult](CSharpSyntaxVisitor`1 visitor)
   at Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor`1.Visit(SyntaxNode node)
   at ICSharpCode.CodeConverter.VB.CommentConvertingNodesVisitor.DefaultVisit(SyntaxNode node)
   at Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor`1.VisitNamespaceDeclaration(NamespaceDeclarationSyntax node)
   at Microsoft.CodeAnalysis.CSharp.Syntax.NamespaceDeclarationSyntax.Accept[TResult](CSharpSyntaxVisitor`1 visitor)
   at ICSharpCode.CodeConverter.VB.NodesVisitor.<VisitCompilationUnit>b__15_1(MemberDeclarationSyntax m)
   at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()
   at Microsoft.CodeAnalysis.SyntaxList`1.CreateNode(IEnumerable`1 nodes)
   at Microsoft.CodeAnalysis.SyntaxList`1..ctor(IEnumerable`1 nodes)
   at Microsoft.CodeAnalysis.VisualBasic.SyntaxFactory.List[TNode](IEnumerable`1 nodes)
   at ICSharpCode.CodeConverter.VB.NodesVisitor.VisitCompilationUnit(CompilationUnitSyntax node)
   at Microsoft.CodeAnalysis.CSharp.Syntax.CompilationUnitSyntax.Accept[TResult](CSharpSyntaxVisitor`1 visitor)
   at Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor`1.Visit(SyntaxNode node)
   at ICSharpCode.CodeConverter.VB.CommentConvertingNodesVisitor.DefaultVisit(SyntaxNode node)
   at Microsoft.CodeAnalysis.CSharp.CSharpSyntaxVisitor`1.VisitCompilationUnit(CompilationUnitSyntax node)
   at Microsoft.CodeAnalysis.CSharp.Syntax.CompilationUnitSyntax.Accept[TResult](CSharpSyntaxVisitor`1 visitor)
   at ICSharpCode.CodeConverter.VB.CSharpConverter.ConvertCompilationTree(CSharpCompilation compilation, CSharpSyntaxTree tree)
   at ICSharpCode.CodeConverter.VB.CSToVBConversion.SingleFirstPass(Compilation sourceCompilation, SyntaxTree tree)
   at ICSharpCode.CodeConverter.Shared.ProjectConversion.SingleFirstPass(SyntaxTree tree, String treeFilePath)
   at ICSharpCode.CodeConverter.Shared.ProjectConversion.FirstPass()```

Expected output

Namespace ICSharpCode.CodeConverter.Shared
    Public Class SolutionConverter

        Private Shared Function ApplyReplacements(ByVal originalText As String, ByVal replacements As IEnumerable(Of (String, String))) As String
            Dim oldValue As String
            Dim newValue As String

            For Each oldValuenewValueTempTuple In replacements
                oldValue = oldValuenewValueTempTuple.Item1
                newValue = oldValuenewValueTempTuple.Item2
                originalText = Regex.Replace(originalText, oldValue, newValue, RegexOptions.IgnoreCase)
            Next

            Return originalText
        End Function

    End Class
End Namespace

Details

VisitTupleElement will also need implemented.