Follow-up patch for removal of all_functions chain

[Mark Mitchell]

> I was seeing a crash in cp/optimize.c during bootstrap, earlier this
> weekend, but I can no longer reproduce it, and it didn't seem to be
> related, anyway.  Assuming the bootstrap I am running now completes
> successfully (i686-linux), OK to apply?

Yes, thanks!

--
Mark Mitchell                   mark@codesourcery.com
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