anchor.diff:          }
         }
   
  -      ClassMember computeClassMember(ClassMember declaredMember,
  -          ClassMember extendedMember, bool forSetter) {
  +      ClassMember computeClassMember(
  +          ClassMember declaredMember,
  +          ClassMember mixedInMember,
  +          ClassMember extendedMember,
  +          bool forSetter) {
  +        if (mixedInMember != null) {
  +          // TODO(johnniwinther): Handle members declared in mixin applications
  +          // correctly.
  +          declaredMember = null;
  +        }
           if (declaredMember != null) {
             if (extendedMember != null && !extendedMember.isStatic) {
               if (declaredMember == extendedMember) return declaredMember;
  
positive.code:                     concrete.name);
                  hierarchy.registerMemberComputation(result);
                }
              } else if (classBuilder.isMixinApplication &&
                  declaredMember.classBuilder != classBuilder) {
                result = InheritedImplementationInterfaceConflict.combined(
                    classBuilder,
                    declaredMember,
                    extendedMember,
                    forSetter,
                    shouldModifyKernel,
  
negative.code:       : assert(!declaredMember.forSetter),
          this.name = declaredMember.name;
  
    Tuple.mixInMember(this.mixedInMember)
        : assert(!mixedInMember.forSetter),
          this.name = mixedInMember.name;
  
    Tuple.extendMember(this.extendedMember)
        : assert(!extendedMember.forSetter),
          this.name = extendedMember.name;
  