Drop 'errorToJson', use server's AnalysisError.

pkg/analysis_server/lib/src/computer/error.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 computer.error;
 
 import 'package:analysis_server/src/computer/element.dart';
 import 'package:analysis_services/constants.dart';
 import 'package:analysis_services/json.dart';
+import 'package:analyzer/src/generated/engine.dart' as engine;
 import 'package:analyzer/src/generated/error.dart' as engine;
 import 'package:analyzer/src/generated/source.dart' as engine;
 
 
 /**
+ * Returns a JSON correponding to the given list of Engine errors.
+ */
+List<Map<String, Object>> engineErrorInfoToJson(engine.AnalysisErrorInfo info) {
+  return engineErrorsToJson(info.lineInfo, info.errors);
+}
+
+
+/**
+ * Returns a JSON correponding to the given list of Engine errors.
+ */
+List<Map<String, Object>> engineErrorsToJson(engine.LineInfo lineInfo,
+    List<engine.AnalysisError> errors) {
+  return errors.map((engine.AnalysisError error) {
+    return new AnalysisError.fromEngine(lineInfo, error).toJson();
+  }).toList();
+}
+
+
+/**
  * An indication of an error, warning, or hint that was produced by the
  * analysis. 
  */
 class AnalysisError implements HasToJson {
   final String severity;
   final String type;
   final Location location;
   final String message;
   final String correction;
 
@@ skipping 17 matching lines @@
           startLine = lineLocation.lineNumber;
           startColumn = lineLocation.columnNumber;
         }
       }
       location = new Location(file, offset, length, startLine, startColumn);
     }
     // done
     String severity = errorCode.errorSeverity.toString();
     String type = errorCode.type.toString();
     String message = error.message;
-    String correction = errorCode.correction;
+    String correction = error.correction;
     return new AnalysisError(severity, type, location, message, correction);
   }
 
   @override
   Map<String, Object> toJson() {
     Map<String, Object> json = {
       SEVERITY: severity,
       TYPE: type,
       LOCATION: location.toJson(),
       MESSAGE: message
@@ skipping 12 matching lines @@
 
   static AnalysisError fromJson(Map<String, Object> json) {
     return new AnalysisError(
         json[SEVERITY],
         json[TYPE],
         new Location.fromJson(json[LOCATION]),
         json[MESSAGE],
         json[CORRECTION]);
   }
 }