[Bug java/64044] Java emits bogus .class$ decls

["aph at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64044

--- Comment #5 from Andrew Haley <aph at gcc dot gnu.org> ---
(In reply to rguenther@suse.de from comment #4)
> On Mon, 24 Nov 2014, aph at redhat dot com wrote:
> 
> > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64044
> > 
> > Andrew Haley <aph at redhat dot com> changed:
> > 
> >            What    |Removed                     |Added
> > ----------------------------------------------------------------------------
> >                  CC|                            |aph at redhat dot com
> > 
> > --- Comment #2 from Andrew Haley <aph at redhat dot com> ---
> > So, is the solution to this trivially not to mark the .class$ decls as
> > TREE_CONST ?
> 
> Yes, see the patch I proposed (in testing right now, I'll post it
> and ask for approval later today unless you want to pre-approve here)

Fine by me.  I did that because I wanted some way to tell GCC that it could
treat the field as readonly, but TREE_CONST doesn't do that.