Remove JavaStringBuilder

pkg/analyzer/lib/src/generated/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.
 
 // This code was auto-generated, is not intended to be edited, and is subject to
 // significant change. Please see the README file for more information.
 
 library engine.error;
 
 import 'dart:collection';
@@ skipping 183 matching lines @@
   @override
   int get hashCode {
     int hashCode = _offset;
     hashCode ^= (_message != null) ? _message.hashCode : 0;
     hashCode ^= (source != null) ? source.hashCode : 0;
     return hashCode;
   }
 
   @override
   String toString() {
-    JavaStringBuilder builder = new JavaStringBuilder();
-    builder.append((source != null) ? source.fullName : "<unknown source>");
-    builder.append("(");
-    builder.append(_offset);
-    builder.append("..");
-    builder.append(_offset + _length - 1);
-    builder.append("): ");
-    //builder.append("(" + lineNumber + ":" + columnNumber + "): ");
-    builder.append(_message);
-    return builder.toString();
+    StringBuffer buffer = new StringBuffer();
+    buffer.write((source != null) ? source.fullName : "<unknown source>");
+    buffer.write("(");
+    buffer.write(_offset);
+    buffer.write("..");
+    buffer.write(_offset + _length - 1);
+    buffer.write("): ");
+    //buffer.write("(" + lineNumber + ":" + columnNumber + "): ");
+    buffer.write(_message);
+    return buffer.toString();
   }
 }
 
 /**
  * The interface `AnalysisErrorListener` defines the behavior of objects that listen for
  * [AnalysisError] being produced by the analysis engine.
  */
 abstract class AnalysisErrorListener {
   /**
    * An error listener that ignores errors that are reported to it.
@@ skipping 3988 matching lines @@
 
   @override
   String get message => "{0}";
 
   @override
   ErrorType get type => ErrorType.TODO;
 
   @override
   String get uniqueName => "$runtimeType.$name";
 }