Changeset 13711

Use the hg bisect command to search for where an ANSI test breaks.

A local copy of the ABCL source tree for the revision at which a given
ANSI-TESTS test breaks.

The code currently uses the failure of the test named by the symbol in
*TEST* to decide if a given revision is a "good" or "bad" changeset.

A Mercurial copy of the ABCL sources may be cloned from
<uri:https://evenson.not.org@code.google.com/p/abcl-dynamic-install/>.