c++/5089: -Wold-style-cast warns about cast to void

[nathan@gcc.gnu.org]

Synopsis: -Wold-style-cast warns about cast to void

State-Changed-From-To: open->analyzed
State-Changed-By: nathan
State-Changed-When: Tue Dec 18 14:23:40 2001
State-Changed-Why:
    I think we shouldn't warn for (void)expr, 
    (my own c++ code uses that, for instance)

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=5089