generic method type parameter inference

pkg/analyzer/lib/src/generated/element.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 engine.element;
 
 import 'dart:collection';
 import 'dart:math' show min;
 
 import 'package:analyzer/src/generated/utilities_general.dart';
@@ skipping 9266 matching lines @@
   @override
   ParameterElement get baseElement => super.baseElement as ParameterElement;
 
   @override
   String get defaultValueCode => baseElement.defaultValueCode;
 
   @override
   Element get enclosingElement => baseElement.enclosingElement;
 
   @override
+  int get hashCode => baseElement.hashCode;
+
+  @override
   bool get isInitializingFormal => baseElement.isInitializingFormal;
 
   @override
   ParameterKind get parameterKind => baseElement.parameterKind;
 
   @override
   List<ParameterElement> get parameters {
     List<ParameterElement> baseParameters = baseElement.parameters;
     int parameterCount = baseParameters.length;
     if (parameterCount == 0) {
       return baseParameters;
     }
     List<ParameterElement> parameterizedParameters =
         new List<ParameterElement>(parameterCount);
     for (int i = 0; i < parameterCount; i++) {
       parameterizedParameters[i] =
           ParameterMember.from(baseParameters[i], definingType);
     }
     return parameterizedParameters;
   }
 
   @override
   List<TypeParameterElement> get typeParameters => baseElement.typeParameters;
 
   @override
   SourceRange get visibleRange => baseElement.visibleRange;
 
   @override
+  bool operator ==(Object object) =>
+      object is ParameterMember && baseElement == object.baseElement;
+
+  @override
   accept(ElementVisitor visitor) => visitor.visitParameterElement(this);
 
   @override
   FormalParameter computeNode() => baseElement.computeNode();
 
   @override
   Element getAncestor(Predicate<Element> predicate) {
     Element element = baseElement.getAncestor(predicate);
     ParameterizedType definingType = this.definingType;
     if (definingType is InterfaceType) {
@@ skipping 1820 matching lines @@
 
   @override
   void visitElement(Element element) {
     int offset = element.nameOffset;
     if (offset != -1) {
       map[offset] = element;
     }
     super.visitElement(element);
   }
 }