Support the name analysis_options.yaml for analysis options files

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

Index: pkg/analysis_server/test/integration/analysis/analysis_options_test.dart
diff --git a/pkg/analysis_server/test/integration/analysis/analysis_options_test.dart b/pkg/analysis_server/test/integration/analysis/analysis_options_test.dart
index 33ad500771fbe65f492589ec4bd3eb0510bb1746..4c55f8255de10aacad45ad0ecb6df884da7d33dd 100644
--- a/pkg/analysis_server/test/integration/analysis/analysis_options_test.dart
+++ b/pkg/analysis_server/test/integration/analysis/analysis_options_test.dart
@@ -2,9 +2,10 @@
 // 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.analysis_options;
+library test.integration.analysis.analysis_options_test;
 
 import 'package:analysis_server/plugin/protocol/protocol.dart';
+import 'package:analyzer/src/generated/engine.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 import 'package:unittest/unittest.dart';
 
@@ -18,8 +19,35 @@ main() {
 
 @reflectiveTest
 class OptionsIntegrationTest extends AbstractAnalysisServerIntegrationTest {
-  test_option_warning() async {
-    String options = sourcePath('.analysis_options');
+  test_option_warning_newOptionFile() async {
+    String options = sourcePath(AnalysisEngine.ANALYSIS_OPTIONS_YAML_FILE);
+    writeFile(
+        options,
+        '''
+linter:
+  rules:
+    - camel_case_typo # :)
+''');
+
+    standardAnalysisSetup();
+
+    await analysisFinished;
+
+    expect(currentAnalysisErrors[options], isList);
+    List<AnalysisError> errors = currentAnalysisErrors[options];
+    expect(errors, hasLength(1));
+    AnalysisError error = errors[0];
+    expect(error.location.file, options);
+    expect(error.severity, AnalysisErrorSeverity.WARNING);
+    expect(error.type, AnalysisErrorType.STATIC_WARNING);
+    expect(error.location.offset, 23);
+    expect(error.location.length, 'camel_case_typo'.length);
+    expect(error.location.startLine, 3);
+    expect(error.location.startColumn, 7);
+  }
+
+  test_option_warning_oldOptionFile() async {
+    String options = sourcePath(AnalysisEngine.ANALYSIS_OPTIONS_FILE);
     writeFile(
         options,
         '''