[Bug c++/60347] [4.9 Regression] r208152 breaks Firefox build

[trippels at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60347

--- Comment #1 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Created attachment 32219
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32219&action=edit
Unreduced testcase