* hb/stdlib/dets_tablenames/OTP-9282:
  Allow Dets tablenames to be arbitrary terms

Conflicts:
	lib/stdlib/src/dets.erl

* hb/stdlib/specs/OTP-9267:
  Types and specifications have been modified and added

Conflicts:
	lib/stdlib/src/timer.erl

Also removes the 'catch' from timer:tc functions which masked errors
in measuring code.

Since initial arguments of temporary children under simple_one_for_one
supervisors are not saved, only a list of pids was stored in such
supervisors. When adding/deleting many children, this would scale
badly. To avoid this the list is now changed to a set.

* siri/stdlib/supervisor-terminate_child-simple_one_for_one/OTP-9201:
  Add terminate_child(Sup, Pid) for simple_one_for_one
  Allow supervisor:terminate_child(SupRef,Pid) for simple_one_for_one

supervisor:terminate_child/2 was not allowed if the supervisor used
restart strategy simple_one_for_one. This is now changed so that
children of this type of supervisors can be terminated by specifying
the child's Pid.

* gc/gen-format-status-improvements:
  Fix format_status bug for unregistered gen_event processes

Conflicts:
	lib/stdlib/test/gen_event_SUITE.erl

OTP-9218

terminates" and improved test suite

The bug fix supplied by Filipe David Manana <fdmanana@apache.org>
did not cover all possible ways that a process may be terminated
as for instance with supervisor:terminate_child. Also there
was a bug in the base case of the patch returning a list of a list instead
of only the list.

Added a timeout for the test cases, eliminated unnecessary sleeps,
improved code.