[Bug c++/61648] g++ accepts literal operator friends for non-template classes but not for *template* classes

[3dw4rd at verizon dot net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61648

--- Comment #3 from Ed Smith-Rowland <3dw4rd at verizon dot net> ---
Put this and it works.

  if (PROCESSING_REAL_TEMPLATE_DECL_P() || processing_specialization)
    {