[Bug preprocessor/109877] need to accept invalid tokens for balanced token sequences in attribute arguments

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109877

Drea Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|c++                         |preprocessor

--- Comment #16 from Drea Pinski <pinskia at gcc dot gnu.org> ---
Now I noticed that edg and MSVC do it as a syntax error.