23.0.60; (CVS HEAD) first replace-string in a file throws error

[Tim Van Holder]

With this morning's build from CVS HED, the very first replace-string
in a C++ file buffer throws an error ("Invalid search bound (wrong side
of point)"), which *Messages* indicates as being thrown by
c-neutralize-syntax-in-CPP.

Note that this may be caused by the fact that this was a "cvs up; make"
type build; I cannot currently verify the problem in a clean
bootstrapped build due to the bootstrap issue reported earlier by Angelo
Graziosi (which seems to be a real bug, as bumping max-specdpl-size from
1000 to 10000 in eval.c has no effect).