0.pre7.14.flaky4.8:
(This version presumably builds itself, because I didn't make
any very exciting changes since the last version that
built itself; but I haven't actually tested.)
We no longer need the distinction between PARSE-ALIEN-TYPE and
%PARSE-ALIEN-TYPE, and it obscured the
couldn't-byte-compile-FIND-ESCAPE-FRAME bug, so I
eliminated it.
I didn't fix the couldn't-byte-compile-FIND-ESCAPED-FRAME bug,
but I find a much simpler test case which exercises
the underlying bug, now recorded in BUGS as 119.