Replace isAppropriateFor with suitabilityFor and start using it

pkg/analyzer/test/src/task/yaml_test.dart

 // Copyright (c) 2016, 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.test.src.task.yaml_test;
 
 import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer/src/task/yaml.dart';
+import 'package:analyzer/task/general.dart';
 import 'package:analyzer/task/yaml.dart';
 import 'package:unittest/unittest.dart';
 import 'package:yaml/yaml.dart';
 
 import '../../reflective_tests.dart';
 import '../../utils.dart';
 import '../context/abstract_context.dart';
 
 main() {
   initializeTestEnvironment();
@@ skipping 12 matching lines @@
   style_guide:
     camel_case_types: false
 ''');
     expect(outputs, hasLength(3));
     YamlDocument document = outputs[YAML_DOCUMENT];
     expect(document, isNotNull);
     var value = document.contents.value;
     expect(value, new isInstanceOf<Map>());
     expect(value['rules']['style_guide']['camel_case_types'], isFalse);
     expect(outputs[YAML_ERRORS], hasLength(0));
-    LineInfo lineInfo = outputs[YAML_LINE_INFO];
+    LineInfo lineInfo = outputs[LINE_INFO];
     expect(lineInfo, isNotNull);
     expect(lineInfo.getOffsetOfLine(0), 0);
     expect(lineInfo.getOffsetOfLine(1), 7);
     expect(lineInfo.getOffsetOfLine(2), 22);
     expect(lineInfo.getOffsetOfLine(3), 50);
   }
 
   test_perform_doesNotExist() {
     _performParseTask(null);
     expect(outputs, hasLength(3));
     YamlDocument document = outputs[YAML_DOCUMENT];
     expect(document, isNotNull);
     expect(document.contents.value, isNull);
     expect(outputs[YAML_ERRORS], hasLength(1));
-    LineInfo lineInfo = outputs[YAML_LINE_INFO];
+    LineInfo lineInfo = outputs[LINE_INFO];
     expect(lineInfo, isNotNull);
     expect(lineInfo.getOffsetOfLine(0), 0);
   }
 
   void _performParseTask(String content) {
     if (content == null) {
       source = resourceProvider.getFile('/test.yaml').createSource();
     } else {
       source = newSource('/test.yaml', content);
     }
     computeResult(source, YAML_DOCUMENT, matcher: isParseYamlTask);
   }
 }