[PATCH] alias.c find_base_value fix

[law@redhat.com]

  > Bootstrapped on hppa2.0w-hp-hpux11.11 with no significant change in test
  > results.  There are two new FAILs (loop-10.c) since my last build, but I
  > believe that these FAILs are a known and different issue.
loop-10.c is a new test for a completely unrelated issue.
jeff