pkg/docgen: rebase oops

pkg/docgen/test/multi_library_test.dart

 library single_library_test;
 
 import 'dart:io';
 
 import 'package:path/path.dart' as path;
 import 'package:unittest/unittest.dart';
 
 import '../lib/docgen.dart';
 import '../../../sdk/lib/_internal/compiler/implementation/mirrors/mirrors_util.dart'
     as dart2js_util;
@@ skipping 157 matching lines @@
           expect(exportedClass.docName, 'testLib.C');
 
           methodParameterDocComment = exportedClass.fixReference(
               'B').children.first.text;
           expect(methodParameterDocComment, 'testLib.B');
 
           methodParameterDocComment = exportedClass.fixReference(
               'testFunc').children.first.text;
           expect(methodParameterDocComment, 'testLib.testFunc');
 
-        })).whenComplete(() => TEMP_DIRNAME.deleteSync(recursive: true));
+        }).whenComplete(() => _tempDir.deleteSync(recursive: true));
     });
   });
 }