Stop building export scopes in KernelDriver.

pkg/front_end/test/src/incremental/file_state_test.dart

 // Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 import 'dart:async';
 
 import 'package:front_end/memory_file_system.dart';
+import 'package:front_end/src/byte_store/byte_store.dart';
 import 'package:front_end/src/fasta/uri_translator_impl.dart';
-import 'package:front_end/src/byte_store/byte_store.dart';
 import 'package:front_end/src/incremental/file_state.dart';
+import 'package:kernel/target/targets.dart';
 import 'package:package_config/packages.dart';
 import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
-import 'package:kernel/target/targets.dart';
 
 import 'mock_sdk.dart';
 
 main() {
   defineReflectiveSuite(() {
     defineReflectiveTests(FileSystemStateTest);
   });
 }
 
 @reflectiveTest
@@ skipping 192 matching lines @@
     expect(aFile.exportedLibraries, isEmpty);
     expect(aFile.partFiles, isEmpty);
 
     expect(bFile.fileUri, b);
     expect(bFile.exists, isTrue);
     _assertImportedUris(bFile, [_coreUri]);
     expect(bFile.exportedLibraries, isEmpty);
     expect(bFile.partFiles, isEmpty);
   }
 
-  test_getFile_exports() async {
-    var a = writeFile('/a.dart', '');
-    var b = writeFile('/b.dart', '');
-    var c = writeFile('/c.dart', '');
-    var d = writeFile('/d.dart', r'''
-export "a.dart" show A, B;
-export "b.dart" hide C, D;
-export "c.dart" show A, B, C, D hide C show A, D;
-''');
-
-    FileState aFile = await fsState.getFile(a);
-    FileState bFile = await fsState.getFile(b);
-    FileState cFile = await fsState.getFile(c);
-    FileState dFile = await fsState.getFile(d);
-
-    expect(dFile.exports, hasLength(3));
-    {
-      NamespaceExport export_ = dFile.exports[0];
-      expect(export_.library, aFile);
-      expect(export_.combinators, hasLength(1));
-      expect(export_.combinators[0].isShow, isTrue);
-      expect(export_.combinators[0].names, unorderedEquals(['A', 'B']));
-      expect(export_.isExposed('A'), isTrue);
-      expect(export_.isExposed('B'), isTrue);
-      expect(export_.isExposed('C'), isFalse);
-      expect(export_.isExposed('D'), isFalse);
-    }
-    {
-      NamespaceExport export_ = dFile.exports[1];
-      expect(export_.library, bFile);
-      expect(export_.combinators, hasLength(1));
-      expect(export_.combinators[0].isShow, isFalse);
-      expect(export_.combinators[0].names, unorderedEquals(['C', 'D']));
-      expect(export_.isExposed('A'), isTrue);
-      expect(export_.isExposed('B'), isTrue);
-      expect(export_.isExposed('C'), isFalse);
-      expect(export_.isExposed('D'), isFalse);
-    }
-    {
-      NamespaceExport export_ = dFile.exports[2];
-      expect(export_.library, cFile);
-      expect(export_.combinators, hasLength(3));
-      expect(export_.combinators[0].isShow, isTrue);
-      expect(
-          export_.combinators[0].names, unorderedEquals(['A', 'B', 'C', 'D']));
-      expect(export_.combinators[1].isShow, isFalse);
-      expect(export_.combinators[1].names, unorderedEquals(['C']));
-      expect(export_.combinators[2].isShow, isTrue);
-      expect(export_.combinators[2].names, unorderedEquals(['A', 'D']));
-      expect(export_.isExposed('A'), isTrue);
-      expect(export_.isExposed('B'), isFalse);
-      expect(export_.isExposed('C'), isFalse);
-      expect(export_.isExposed('D'), isTrue);
-    }
-  }
-
   test_hasMixinApplication_false() async {
     writeFile('/a.dart', r'''
 class A {}
 class B extends Object with A {}
 ''');
     var uri = writeFile('/test.dart', r'''
 import 'a.dart';
 class T1 extends A {}
 class T2 extends B {}
 ''');
@@ skipping 223 matching lines @@
   }
 
   Uri _writeFileDirectives(String path,
       {List<String> imports: const [], List<String> exports: const []}) {
     return writeFile(path, '''
 ${imports.map((uri) => 'import "$uri";').join('\n')}
 ${exports.map((uri) => 'export "$uri";').join('\n')}
 ''');
   }
 }