anchor.diff:            if (member.isGetter) {
               getters[member.name.name] = member;
             } else if (member.isSetter) {
  -            setters[member.name.name] = member;
  +            setters.add(member);
             } else {
               functions.add(member);
             }
  
positive.code:         if (member.isGetter) {
            getters[member.name.name] = member;
          } else if (member.isSetter) {
            setters[member.name.name] = member;
          } else {
            methods.add(member);
          }
  
negative.code:     // Check methods
  
      Map<String, MethodDeclaration> getters = <String, MethodDeclaration>{};
      List<MethodDeclaration> setters = <MethodDeclaration>[];
  
      // Non-getters/setters.
      List<MethodDeclaration> methods = <MethodDeclaration>[];
  