c++/4283: Implicit typename extension should be optional

[nathan@gcc.gnu.org]

Synopsis: Implicit typename extension should be optional

State-Changed-From-To: open->feedback
State-Changed-By: nathan
State-Changed-When: Sat Dec 15 10:20:05 2001
State-Changed-Why:
    it is now deprecated on the mainline (and so will be
    in 3.1), it is hoped it will be removed in 3.2
    
    Is this sufficient? You get an unconditional warning
    on its use now.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=4283