Use non-deprecated API

Author: GrahamTheCoder

CodeConverter/CSharp/CommonConversions.cs

@@ -569,7 +569,7 @@ public static CSSyntax.VariableDeclaratorSyntax CreateVariableDeclarator(string
     {
         if (operation is IPropertyReferenceOperation pro && pro.Arguments.Any() &&
             !VisualBasicExtensions.IsDefault(pro.Property)) {
-            var isSetter = pro.Parent.Kind == OperationKind.SimpleAssignment && pro.Parent.Children.First() == pro;
+            var isSetter = pro.Parent.Kind == OperationKind.SimpleAssignment && pro.Parent.ChildOperations.First() == pro;
             var extraArg = isSetter
                 ? await GetParameterizedSetterArgAsync(operation)
                 : null;

CodeConverter/CSharp/ProjectMergedDeclarationExtensions.cs

@@ -164,7 +164,7 @@ private static async Task<Project> RenamePrefixAsync(Project project, string old
         for (var symbolToRename = await GetElementToRename(project); symbolToRename != null; symbolToRename = await GetElementToRename(project, toSkip)) {
             string newName = symbolToRename.Name.Replace(oldNamePrefix, newNamePrefix);
             try {
-                var renamedSolution = await Renamer.RenameSymbolAsync(project.Solution, symbolToRename, newName, project.Solution.Workspace.Options, cancellationToken);
+                var renamedSolution = await Renamer.RenameSymbolAsync(project.Solution, symbolToRename, new SymbolRenameOptions(), newName, cancellationToken);
                 project = renamedSolution.GetProject(project.Id);
             } catch (Exception e) {
                 toSkip++;

CodeConverter/Common/SymbolRenamer.cs

@@ -35,7 +35,7 @@ public static async Task<Project> PerformRenamesAsync(Project project, IEnumerab
             ISymbol currentDeclaration = SymbolFinder.FindSimilarSymbols(originalSymbol, compilation).FirstOrDefault();
             if (currentDeclaration == null)
                 continue; //Must have already renamed this symbol for a different reason
-            solution = await Renamer.RenameSymbolAsync(solution, currentDeclaration, newName, solution.Workspace.Options);
+            solution = await Renamer.RenameSymbolAsync(solution, currentDeclaration, new SymbolRenameOptions(), newName, cancellationToken);
         }
 
         return solution.GetProject(project.Id);