Re: RFC 12 (v2) variable usage warnings

[Tom Christiansen]

>The warning for the use of an unassigned variable should be "use of
>uninitialized variable C<$x>". 

The problem with that idea, now as before, is that this check happens 
where Perl is looking at a value, not a variable.  Even were it possible
to arduously modify Perl to handle explicitly named simple variables,
there's much more to consider.

    if ( fx() == fy() ) { }

For one.

--tom