anchor.diff:      // TODO(nweiz): use URL-style paths when such a thing exists.
       var builder = new path.Builder(style: path.Style.posix);
       expect(builder.basename(frame.uri.path), equals('frame_test.dart'));
  -    expect(frame.line, equals(15));
  +    expect(frame.line, equals(16));
       expect(frame.column, equals(5));
       expect(frame.member, equals('getStackFrame'));
     });
  
positive.code:     });
  
      test('returns the relative path for file URIs', () {
        var absolute = path.absolute(path.join('foo', 'bar.dart'));
        expect(new Frame.parse('#0 Foo (file://$absolute:0:0)').library,
            equals(path.join('foo', 'bar.dart')));
      });
    });
  
negative.code: 
  library frame_test;
  
  import 'dart:io';
  import 'dart:uri';
  
  import 'package:pathos/path.dart' as path;
  