Rename Error to RequestError in analysis server API.

pkg/analysis_server/tool/spec/api.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.
 
 /**
  * Data structures representing an API definition, and visitor base classes
  * for visiting those data structures.
  */
 library api;
 
@@ skipping 266 matching lines @@
       fields.add(new TypeObjectField('params', params, null));
     }
     return new TypeObject(fields, null);
   }
 
   /**
    * Get the full type of the response object, including the common "id" and
    * "error" fields.
    */
   TypeDecl get responseType {
-    List<TypeObjectField> fields = [new TypeObjectField('id', new TypeReference(
-        'String', null), null), new TypeObjectField('error', new TypeReference('Error',
-        null), null, optional: true)];
+    List<TypeObjectField> fields = [
+        new TypeObjectField('id', new TypeReference('String', null), null),
+        new TypeObjectField(
+            'error',
+            new TypeReference('RequestError', null),
+            null,
+            optional: true)];
     if (result != null) {
       fields.add(new TypeObjectField('result', result, null));
     }
     return new TypeObject(fields, null);
   }
 }
 
 /**
  * Description of a request method.
  */
@@ skipping 172 matching lines @@
 }
 
 /**
  * Description of a single allowed value for an enum.
  */
 class TypeEnumValue extends ApiNode {
   final String value;
 
   TypeEnumValue(this.value, dom.Element html) : super(html);
 }