Remove analyzer workaround for #27447.

pkg/analyzer/lib/src/generated/utilities_dart.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 analyzer.src.generated.utilities_dart;
 
 import 'package:analyzer/dart/ast/ast.dart' show AnnotatedNode, Comment;
 import 'package:analyzer/dart/ast/token.dart' show Token;
 import 'package:analyzer/exception/exception.dart';
 import 'package:analyzer/src/dart/element/element.dart' show ElementImpl;
@@ skipping 15 matching lines @@
   Uri origBaseUri = baseUri;
   try {
     String scheme = baseUri.scheme;
     // dart:core => dart:core/core.dart
     if (scheme == DartUriResolver.DART_SCHEME) {
       String part = baseUri.path;
       if (part.indexOf('/') < 0) {
         baseUri = Uri.parse('$scheme:$part/$part.dart');
       }
     }
-    // foo.dart + ../bar.dart = ../bar.dart
-    // TODO(scheglov) Remove this temporary workaround.
-    // Should be fixed as https://github.com/dart-lang/sdk/issues/27447
-    List<String> baseSegments = baseUri.pathSegments;
-    List<String> containedSegments = containedUri.pathSegments;
-    if (baseSegments.length == 1 &&
-        containedSegments.length > 0 &&
-        containedSegments[0] == '..') {
-      return containedUri;
-    }
     return baseUri.resolveUri(containedUri);
   } catch (exception, stackTrace) {
     throw new AnalysisException(
         "Could not resolve URI ($containedUri) relative to source ($origBaseUri)",
         new CaughtException(exception, stackTrace));
   }
 }
 
 /**
  * If the given [node] has a documentation comment, remember its content
@@ skipping 73 matching lines @@
 
   @override
   int get hashCode => ordinal;
 
   @override
   int compareTo(ParameterKind other) => ordinal - other.ordinal;
 
   @override
   String toString() => name;
 }