Fix error handling in analysis.getError.

pkg/analysis_server/lib/src/protocol.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 protocol;
 
 import 'dart:collection';
 import 'dart:convert';
 
 import 'package:analysis_server/src/computer/element.dart' show
@@ skipping 833 matching lines @@
         decodedResult = result;
       }
       return new Response(id, error: decodedError,
           result: decodedResult);
     } catch (exception) {
       return null;
     }
   }
 
   /**
-   * Initialize a newly created instance to represent an error condition caused
-   * by an error during `analysis.getErrors`.
+   * Initialize a newly created instance to represent the
+   * GET_ERRORS_INVALID_FILE error condition.
    */
-  Response.getErrorsError(Request request, String message,
-      Map<String, Object> result)
+  Response.getErrorsInvalidFile(Request request)
     : this(
         request.id,
-        error: new RequestError(RequestErrorCode.GET_ERRORS_ERROR, 'Error during `analysis.getErrors`: $message.'),
-        result: result);
+        error: new RequestError(RequestErrorCode.GET_ERRORS_INVALID_FILE,
+            'Error during `analysis.getErrors`: invalid file.'));
 
   /**
    * Initialize a newly created instance to represent an error condition caused
    * by a [request] that had invalid parameter.  [path] is the path to the
    * invalid parameter, in Javascript notation (e.g. "foo.bar" means that the
    * parameter "foo" contained a key "bar" whose value was the wrong type).
    * [expectation] is a description of the type of data that was expected.
    */
   Response.invalidParameter(Request request, String path, String expectation)
       : this(request.id, error: new RequestError(RequestErrorCode.INVALID_PARAMETER,
@@ skipping 74 matching lines @@
     hash = 0x1fffffff & (hash + ((0x03ffffff & hash) << 3));
     hash = hash ^ (hash >> 11);
     return 0x1fffffff & (hash + ((0x00003fff & hash) << 15));
   }
 
   static int hash2(a, b) => finish(combine(combine(0, a), b));
 
   static int hash4(a, b, c, d) =>
       finish(combine(combine(combine(combine(0, a), b), c), d));
 }