Implement "analysis.reanalyze" in analysis server.

pkg/analysis_server/test/integration/analysis/reanalyze_test.dart

+// Copyright (c) 2014, 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 test.integration.analysis.reanalyze;
+
+import '../../reflective_tests.dart';
+import 'package:unittest/unittest.dart';
+
+import '../integration_tests.dart';
+
+@ReflectiveTestCase()
+class Test extends AbstractAnalysisServerIntegrationTest {
+  test_reanalyze() {
+    String pathname = sourcePath('test.dart');
+    String text = 'main() {}';
+    writeFile(pathname, text);
+    standardAnalysisSetup();
+    return analysisFinished.then((_) {
+      // Make sure that reanalyze causes analysis to restart.
+      bool analysisRestarted = false;
+      onServerStatus.listen((data) {
+        if (data.containsKey('analysis')) {
+          if (data['analysis']['isAnalyzing']) {
+            analysisRestarted = true;
+          }
+        }
+      });
+      sendAnalysisReanalyze();
+      return analysisFinished.then((_) {
+        expect(analysisRestarted, isTrue);
+      });
+    });
+  }
+}
+
+main() {
+  runReflectiveTests(Test);
+}