Patch methods in classes.

lib/compiler/implementation/scanner/class_element_parser.dart

 // Copyright (c) 2011, 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.
 
 class ClassElementParser extends PartialParser {
   ClassElementParser(Listener listener) : super(listener);
 
   Token parseClassBody(Token token) => fullParseClassBody(token);
 }
 
@@ skipping 73 matching lines @@
         recoverableError('illegal modifier', token: getOrSet);
       }
       kind = ElementKind.GENERATIVE_CONSTRUCTOR;
     } else if (getOrSet !== null) {
       kind = (getOrSet.stringValue === 'get')
              ? ElementKind.GETTER : ElementKind.SETTER;
     }
     Element memberElement =
         new PartialFunctionElement(name, beginToken, getOrSet, endToken,
                                    kind, method.modifiers, enclosingElement);
-    enclosingElement.addMember(memberElement, listener);
+    addMember(memberElement);
   }
 
   void endFactoryMethod(Token factoryKeyword, Token periodBeforeName,
                         Token endToken) {
     super.endFactoryMethod(factoryKeyword, periodBeforeName, endToken);
     FunctionExpression method = popNode();
     pushNode(null);
     SourceString name = getMethodNameHack(method.name);
     ElementKind kind = ElementKind.FUNCTION;
     Element memberElement =
         new PartialFunctionElement(name, factoryKeyword, null, endToken,
                                    kind, method.modifiers, enclosingElement);
-    enclosingElement.addMember(memberElement, listener);
+    addMember(memberElement);
   }
 
   void endFields(int count, Token beginToken, Token endToken) {
     super.endFields(count, beginToken, endToken);
     VariableDefinitions variableDefinitions = popNode();
     Modifiers modifiers = variableDefinitions.modifiers;
     pushNode(null);
     void buildFieldElement(SourceString name, Element fields) {
       Element element = new VariableElement(
           name, fields, ElementKind.FIELD, enclosingElement);
-      enclosingElement.addMember(element, listener);
+      addMember(element);
     }
     buildFieldElements(modifiers, variableDefinitions.definitions,
                        enclosingElement,
                        buildFieldElement, beginToken, endToken);
   }
 
   void endInitializer(Token assignmentOperator) {
     pushNode(null); // Super expects an expression, but
                     // ClassElementParser just skips expressions.
     super.endInitializer(assignmentOperator);
   }
 
   void endInitializers(int count, Token beginToken, Token endToken) {
     pushNode(null);
   }
+
+  void addMember(Element memberElement) {
+    enclosingElement.addMember(memberElement, listener);
+  }
 }