Disable collection of profiling info until a portable library can be used

code-char is allowed to return NIL for a given code.
gen-character now checks for this, so that it will always
return a character.

to be used when you really want to safeguard
that some other test has not run first.

This slot doesn't really do what it's says it does (redefining it
doesn't change things the way you'd expect) and it causes no end of
headaches by confusing compile-time definitions with run-time
definitions.

Use either *SUITE* or (GET-TEST NAME)

provide the expected value (and, obviously, its value)