[Bug c++/60503] New: gcc looks for C++ attributes in the wrong place in a lambda-expression

["richard-gccbugzilla at metafoo dot co.uk" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60503

            Bug ID: 60503
           Summary: gcc looks for C++ attributes in the wrong place in a
                    lambda-expression
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: richard-gccbugzilla at metafoo dot co.uk

GCC accepts this ill-formed code:

  void f() { []() [[ ]] mutable noexcept {}; }

... and rejects this valid code:

  void f() { []() mutable noexcept [[ ]] {}; }