Remove JavaStringBuilder

pkg/analyzer/lib/src/generated/constant.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.constant;
 
 import 'dart:collection';
@@ skipping 1341 matching lines @@
         first = false;
       } else {
         result = _dartObjectComputer.concatenate(node, result, element.accept(this));
       }
     }
     return result;
   }
 
   @override
   DartObjectImpl visitSymbolLiteral(SymbolLiteral node) {
-    JavaStringBuilder builder = new JavaStringBuilder();
+    StringBuffer buffer = new StringBuffer();
     List<Token> components = node.components;
     for (int i = 0; i < components.length; i++) {
       if (i > 0) {
-        builder.appendChar(0x2E);
+        buffer.writeCharCode(0x2E);
       }
-      builder.append(components[i].lexeme);
+      buffer.write(components[i].lexeme);
     }
-    return new DartObjectImpl(_typeProvider.symbolType, new SymbolState(builder.toString()));
+    return new DartObjectImpl(_typeProvider.symbolType, new SymbolState(buffer.toString()));
   }
 
   /**
    * This method is called just before retrieving an evaluation result from an AST node. Unit tests
    * will override it to introduce additional error checking.
    */
   void beforeGetEvaluationResult(AstNode node) {
   }
 
   /**
@@ skipping 3307 matching lines @@
 
   @override
   String get typeName => "Type";
 
   @override
   int get hashCode => _element == null ? 0 : _element.hashCode;
 
   @override
   String toString() => _element == null ? "-unknown-" : _element.name;
 }