Error: shadowing declaration is deprecated

[%u]

== Quote from Ary Manzana (ary at esperanto.org.ar)'s article
> jicman escribió:
> > == Quote from Bill Baxter's article
> >> jicman wrote:
> >>> Greetings!
> >>>
> >>> this code,
> >>>
> >>>   foreach(char[] u; FPUsers)
> >>>   {
> >>>
> >>>   }
> >>>
> >>> results in,
> >>>
> >>> Error: shadowing declaration jic.libs.FPSDK.FindUser.u is
> > deprecated.
> >>> Will anyone explain this to me?  I tried to do a search on it,
> > but I couldn't
> >>> anything related to this.  Found other integer arrays, but
> > nothing about
> >>> char[].  Any help would be greatly appreciated.  Thanks.
> >>>
> >>> jos�
> >> It means you have another variable named 'u' in the same
function
> >> declared somewhere before that foreach loop.  The theory is that
> > many
> >> times these are bugs, and when they are they can be hard to
spot.
> >> I'm not totally enamored with the feature myself, since I don't
> > recall
> >> ever really been bitten by it, but I have happily shadowed
> > variables in
> >> the past when it suited me.  Especially little dummy
> > counter/placeholder
> >> variables like your 'c' above.
> >> But anyway, that's what the error means.  Just rename 'c' to c2
or
> > cc or d.
> >> --bb
> >
> > Ok, I'll buy that, but this is not working either:
> >
> > char[] u;
> > foreach(u; FPUsers)
> > {
> > }
> >
> > That should work.
> But probably in your code there is some other variable "u" defined,
> previous to the "char[] u" line. Check that.
> Cheers,
> Ary

Ok, let's take a look at this small program:

void main()
{
  char[][] tArr = null;
  tArr.length = tArr.length + 1;
  tArr[0] = "hi";
  char[] u;
  foreach(u;tArr)
    printf(u);
}

As you can see, there are no other declaration of u in the program,
and here is what I get when I use dmd:

 0:56:01.67>dmd test.d
test.d(7): Error: shadowing declaration test.main.u is deprecated

Ok, what is it that I am not understanding.