3654 zdb should print number of ganged blocks
3655 ::rrwlock and ::refcount print errors on non-debug kernels
3656 remove unused function zap_cursor_move_to_key()
3657 mdb_ctf_vread() should allow conversion of pointer to uintptr_t
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Christopher Siden <christopher.siden@delphix.com>
Reviewed by: Dan McDonald <danmcd@nexenta.com>
Approved by: Garrett D'Amore <garrett@damore.org>
3650 mdb global symbol tab completion should find all symbols
3651 mdb_readsym() and friends should find all symbols
3652 convert ::spa and ::spa_vdevs to use mdb_ctf_vread()
3653 userland ::whatis always complains about "umem_internal_arena" symbol
Reviewed by: Henrik Mattson <henrik.mattson@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Christopher Siden <christopher.siden@delphix.com>
Approved by: Dan McDonald <danmcd@nexenta.com>
	[illumos-gate merge]

commit 22ce014825a14b6ce90123db2834a13e343d6caf
    3650 mdb global symbol tab completion should find all symbols
    3651 mdb_readsym() and friends should find all symbols
    3652 convert ::spa and ::spa_vdevs to use mdb_ctf_vread()
    3653 userland ::whatis always complains about "umem_internal_arena" symbol
commit d5ee8a1311accef11ec2057f70da38d1dd687088
    3654 zdb should print number of ganged blocks
    3655 ::rrwlock and ::refcount print errors on non-debug kernels
    3656 remove unused function zap_cursor_move_to_key()
    3657 mdb_ctf_vread() should allow conversion of pointer to uintptr_t