[Bug other/46332] __cxa_demangle yields excess parentheses for function types

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46332

--- Comment #14 from Jonathan Wakely <redi at gcc dot gnu.org> 2010-11-10 
16:46:17 UTC ---
Yep, looks right to me
void (double) is a function type
void (*)(double) is a pointer to such a function type
void (&)(double) is a reference to such a type