protected override Compilation CreateScriptCompilation(string assemblyName, SyntaxTree syntaxTree,
                                                        IEnumerable <MetadataReference> references, CompilationOptions options,
                                                        Compilation previousScriptCompilation, Type returnType, Type globalsType) =>
 VisualBasicCompilation.CreateScriptCompilation(assemblyName, syntaxTree, references, (VisualBasicCompilationOptions)options, (VisualBasicCompilation)previousScriptCompilation, returnType, globalsType);