anchor.diff:  import 'package:path/path.dart' as path;
   
   import 'package:front_end/src/fasta/fasta.dart' as fasta
  -    show compilePlatform, writeDepsFile;
  +    show compile, compilePlatform, writeDepsFile;
   
   import 'package:compiler/src/kernel/fasta_support.dart' as dart2js
       show compilePlatform;
  
positive.code:   if (forVm) {
      await fasta.compilePlatform(outDirUri, platform,
          packages: packages, outlineOutput: outline);
    } else {
      await dart2js.compilePlatform(outDirUri, platform,
          packages: packages, outlineOutput: outline);
  
negative.code: 
    Uri platform = outDirUri.resolve('platform.dill.tmp');
    Uri outline = outDirUri.resolve('outline.dill');
    Uri vmserviceIo = outDirUri.resolve('vmservice_io.dill');
    Uri librariesJson = outDirUri.resolve("lib/libraries.json");
    Uri packages = Uri.base.resolveUri(new Uri.file(packagesFile));
  
  