[project @ 2000-04-07 16:25:19 by sewardj]

If an object symbol is not found via the usual methods, search absolutely
every object symbol table in the system before giving up on it.
Motivation: searching for Arch_x86_foobar_closure generates a search for
x86_foobar_closure in module Arch, whereas we really want to search for
foobar_closure in module Arch_x86.  Sigh.