Remove KernelDriver/IKG.invalidateAll().

pkg/front_end/test/incremental_kernel_generator_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/compiler_options.dart';
 import 'package:front_end/incremental_kernel_generator.dart';
 import 'package:front_end/memory_file_system.dart';
 import 'package:front_end/src/incremental/byte_store.dart';
@@ skipping 168 matching lines @@
       Program program = delta.newProgram;
       _assertLibraryUris(program,
           includes: [aUri, bUri, cUri],
           excludes: [dUri, Uri.parse('dart:core')]);
       // While a.dart and b.dart are is included (VM needs them), they were not
       // recompiled, because the change to c.dart was in the function body.
       _assertCompiledUris([cUri]);
     }
   }
 
-  test_invalidateAll() async {
-    writeFile('/test/.packages', '');
-    Uri aUri = writeFile('/test/a.dart', "import 'b.dart';\nint a = b;");
-    Uri bUri = writeFile('/test/b.dart', 'var b = 1;');
-
-    Program program = await getInitialState(aUri);
-    expect(_getLibraryText(_getLibrary(program, aUri)), contains("int a ="));
-    expect(_getLibraryText(_getLibrary(program, bUri)), contains("b = 1"));
-
-    writeFile('/test/a.dart', "import 'b.dart';\ndouble a = b;");
-    writeFile('/test/b.dart', 'var b = 2;');
-    incrementalKernelGenerator.invalidateAll();
-
-    DeltaProgram delta = await incrementalKernelGenerator.computeDelta();
-    program = delta.newProgram;
-    _assertLibraryUris(program, includes: [aUri, bUri]);
-    expect(_getLibraryText(_getLibrary(program, aUri)), contains("double a ="));
-    expect(_getLibraryText(_getLibrary(program, bUri)), contains("b = 2"));
-  }
-
   test_updateEntryPoint() async {
     writeFile('/test/.packages', 'test:lib/');
     String path = '/test/lib/test.dart';
     Uri uri = writeFile(
         path,
         r'''
 main() {
   var v = 1;
 }
 ''');
@@ skipping 179 matching lines @@
     throw fail('No library found with URI "$uri"');
   }
 
   String _getLibraryText(Library library) {
     StringBuffer buffer = new StringBuffer();
     new Printer(buffer, syntheticNames: new NameSystem())
         .writeLibraryFile(library);
     return buffer.toString();
   }
 }