anchor.diff:        _generator = generator != null
             ? generator
             : await IncrementalKernelGenerator.newInstance(
  -              compilerOptions, Uri.base.resolve(_filename),
  +              compilerOptions, _filenameUri,
                 useMinimalGenerator: true);
         final DeltaProgram deltaProgram =
             await _runWithPrintRedirection(() => _generator.computeDelta());
  
positive.code:   }
  
    Uri _ensureFolderPath(String path) {
      // This is a URI, not a file path, so the forward slash is correct even
      // on Windows.
      if (!path.endsWith('/')) {
        path = '$path/';
      }
      return Uri.base.resolve(path);
    }
  
    /// Runs the given function [f] in a Zone that redirects all prints into
  
negative.code:           sdkRoot.resolve('platform.dill')
          ];
        }
        program = await _runWithPrintRedirection(() =>
            compileToKernel(_filenameUri, compilerOptions, aot: options['aot']));
      }
      if (program != null) {
        final IOSink sink = new File(_kernelBinaryFilename).openWrite();
  