C++: -Wshadow violates the ISO C++ scoping rules

[Mike Stump]

Oops, sorry about that.  reupdate, and let me know.  I retested with a
checking build and it worked fine for me (if I configured right
(--enable-check)).

Thanks for catching it, sorry you had to.

> Date: Fri, 28 Jan 2000 12:32:41 +0100
> From: Franz Sirl <Franz.Sirl-kernel@lauterbach.com>

> this seems to break bootstrap with --enable-checking=tree,gc,misc on