add analysis server --flutter-repo startup flag

pkg/analyzer/test/src/context/builder_test.dart

Index: pkg/analyzer/test/src/context/builder_test.dart
diff --git a/pkg/analyzer/test/src/context/builder_test.dart b/pkg/analyzer/test/src/context/builder_test.dart
index cdae0dfa1e3733d5df4da5de87a3158703b04d10..c6278839327200a8309824e90d390b6f123238bb 100644
--- a/pkg/analyzer/test/src/context/builder_test.dart
+++ b/pkg/analyzer/test/src/context/builder_test.dart
@@ -77,6 +77,7 @@ class ContextBuilderTest extends EngineTestCase {
   _MockLintRule _mockLintRule;
   _MockLintRule _mockLintRule2;
   _MockLintRule _mockLintRule3;
+  _MockLintRule _mockPublicMemberApiDocs;
 
   Uri convertedDirectoryUri(String directoryPath) {
     return new Uri.directory(resourceProvider.convertPath(directoryPath),
@@ -771,6 +772,36 @@ linter:
     _expectEqualOptions(options, expected);
   }
 
+  void test_getAnalysisOptions_default_flutter_repo() {
+    _defineMockLintRules();
+    AnalysisOptionsImpl defaultOptions = new AnalysisOptionsImpl();
+    builderOptions.defaultOptions = defaultOptions;
+    AnalysisOptionsImpl expected = new AnalysisOptionsImpl();
+    expected.lint = true;
+    expected.lintRules = <Linter>[_mockLintRule, _mockPublicMemberApiDocs];
+    String packagesFilePath =
+        resourceProvider.convertPath('/some/directory/path/.packages');
+    createFile(packagesFilePath, 'flutter:/pkg/flutter/lib/');
+    String optionsFilePath = resourceProvider
+        .convertPath('/pkg/flutter/lib/analysis_options_user.yaml');
+    createFile(
+        optionsFilePath,
+        '''
+linter:
+  rules:
+    - mock_lint_rule
+''');
+    String projPath = resourceProvider.convertPath('/some/directory/path');
+    AnalysisOptions options;
+    try {
+      ContextBuilderOptions.flutterRepo = true;
+      options = builder.getAnalysisOptions(projPath);
+    } finally {
+      ContextBuilderOptions.flutterRepo = false;
+    }
+    _expectEqualOptions(options, expected);
+  }
+
   void test_getAnalysisOptions_default_noOverrides() {
     AnalysisOptionsImpl defaultOptions = new AnalysisOptionsImpl();
     defaultOptions.enableLazyAssignmentOperators = true;
@@ -1012,6 +1043,8 @@ linter:
     Registry.ruleRegistry.registerDefault(_mockLintRule2);
     _mockLintRule3 = new _MockLintRule('mock_lint_rule3');
     Registry.ruleRegistry.register(_mockLintRule3);
+    _mockPublicMemberApiDocs = new _MockLintRule('public_member_api_docs');
+    Registry.ruleRegistry.register(_mockPublicMemberApiDocs);
   }
 
   void _expectEqualOptions(