[Bug c++/61691] New: [4.10 Regression] invalid use of incomplete type in Firefox

[mliska at suse dot cz]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61691

            Bug ID: 61691
           Summary: [4.10 Regression] invalid use of incomplete type in
                    Firefox
           Product: gcc
           Version: 4.10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: mliska at suse dot cz

Created attachment 33065
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33065&action=edit
reduced.ii

Starting from r212174, following error can be encountered in reduced test case
coming from latest Firefox:

g++ -std=gnu++0x -O2 -c /tmp/reduced.ii 
/tmp/reduced.ii: In instantiation of ‘nsRefPtr<T>::~nsRefPtr() [with T =
mozilla::dom::AudioNode]’:
/tmp/reduced.ii:38:7:   required from here
/tmp/reduced.ii:9:7: error: invalid use of incomplete type ‘class
mozilla::dom::AudioNode’
       mRawPtr->Release();
       ^
/tmp/reduced.ii:25:7: note: forward declaration of ‘class
mozilla::dom::AudioNode’
 class AudioNode;

I also attached original preprocessed file from Firefox.

Thanks,
Martin