anchor.diff:    }
   
     List<String> computeCompilerArguments(
  -      vmOptions, sharedOptions, dart2jsOptions, ddcOptions, originalArguments) {
  +      List<String> vmOptions,
  +      List<String> sharedOptions,
  +      List<String> dart2jsOptions,
  +      List<String> ddcOptions,
  +      List<String> originalArguments) {
       List<String> args = [];
       if (_isChecked) {
         args.add('--enable_asserts');
  
positive.code: 
  abstract class VMKernelCompilerMixin {
    TestConfiguration get _configuration;
    bool get _useSdk;
    bool get _isAot;
    bool get _isChecked;
    bool get _useEnableAsserts;
  
    String get executableScriptSuffix;
  
negative.code:   final bool previewDart2;
  
    bool get _isAndroid => _configuration.system == System.android;
  
    bool get _isArm => _configuration.architecture == Architecture.arm;
  
    bool get _isArm64 => _configuration.architecture == Architecture.arm64;
  
    bool get _isAot => true;
  