top-level removal of dejagnu, expect

[DJ Delorie]

> In preparation for the removal of src/{dejagnu,expect}.
> Okay to commit?

1. Have you asked EVERY project that uses the src repository?
   binutils and gdb aren't the only projects.  Why not just remove
   those directories from the modules file instead?  cgf has already
   mentioned that src/expect has cygwin-specific code in it.

2. Our internal repository has a customized dejagnu; it would be
   convenient for us if support for an in-tree dejagnu were
   maintained.  Likewise for other developers who may want to (or need
   to) customize dejagnu for new ports in conjunction with porting the
   tools.

So, I would prefer that support for an in-tree dejagnu were retained.
Even if dejagnu and expect were totally wiped from the src repository,
the toplevel changes would not be needed to support that change, so
claiming that change is "in preparation for" the removal is
misleading.  I suggest doing it later, after the dust settles, if at
all.