MFC	r259841

gcc:  Add ability to generate DWARF pubtypes section if
DEBUG_PUBTYPES_SECTION is defined.

Obtained from:	gcc 4.3 (rev. 118826; GPLv2)
MFC r260049:

Add mibs for hastd(1) queue stats.
MFC r258821 - fix tcp simultaneous close

PR:             kern/99188
Merged r260415 from head.

Approved by:	davidcd
MFC r258894: Make rc(8) re-source rc.conf upon receipt of SIGALRM.

The rc system aggressively caches the contents of /etc/rc.conf in order to
improve boot performance; this produces arguably astonishing (non-)results
if /etc/rc.conf is modified during the boot process.  This commit provides
a mechanism for explicitly requesting that rc.conf be reloaded.
MFC r258893, r258956:
  Add a new sysctl / loader tunable kern.panic_reboot_wait_time which
  defaults to PANIC_REBOOT_WAIT_TIME (a long-existing kernel config
  setting).  Use this now-variable value in place of the defined constant
  to control how long the system waits after a panic before rebooting.
Revert MFC of r258821 - it was already handled by MFC of r239672.

Pointy hat to: peter
[automated] Merge in upstream-github/stable/9