2015-12-22 17:26:07 by Henrik Grubbström (Grubba) <firstname.lastname@example.org>
Partial revert "Strings: Speeded up safe_debug_findstring() a factor htable_size."
The function is also used from the gc with pointers that not necessarily
This reverts commit 2f782f51a5b5805f3b996a197689cf0d09508021, and
renames the new implementation under to debug_find_shared_string().
Note that this reinstates the performance issue (temporarily).
Inside #if defined(PIKE_DEBUG)