Change analyzer_cli's "package mode" into a "build mode".

pkg/analyzer_cli/test/driver_test.dart

 // Copyright (c) 2015, 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.
 
 library analyzer_cli.test.driver;
 
 import 'dart:io';
 
 import 'package:analyzer/plugin/options.dart';
 import 'package:analyzer/source/analysis_options_provider.dart';
@@ skipping 266 matching lines @@
           expect(
               processorFor(undefined_function).severity, ErrorSeverity.WARNING);
           // Should not be made fatal by `--fatal-warnings`.
           expect(outSink.toString(),
               contains("[warning] The function 'baz' is not defined"));
           expect(outSink.toString(), contains("1 error and 1 warning found."));
         });
       });
     });
 
-    group('package-mode', () {
+    group('build-mode', () {
       // Shared driver command.
-      var doDrive = () => drive('data/options_tests_project/test_file.dart',
+      var testFilePath = path.join(
+          path.dirname(Platform.script.toFilePath()), 'data', 'test_file.dart');
+      var doDrive = () => drive('file:///test_file.dart|$testFilePath',
           args: [
             '--dart-sdk',
             findSdkDirForSummaries(),
-            '--package-mode',
+            '--build-mode',
             '--machine'
           ],
           options: 'data/options_tests_project/.analysis_options');
 
       test('no stats', () {
         doDrive();
         // Should not print stat summary.
         expect(outSink.toString(), isEmpty);
+        expect(errorSink.toString(), isEmpty);
+        expect(exitCode, 0);
       });
     });
 
 //TODO(pq): fix to be bot-friendly (sdk#25258).
 //    group('in temp directory', () {
 //      Directory savedCurrentDirectory;
 //      Directory tempDir;
 //      setUp(() {
 //        // Call base setUp.
 //        _setUp();
@@ skipping 159 matching lines @@
     this.options = options;
   }
 }
 
 class TestSource implements Source {
   TestSource();
 
   @override
   noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
 }