qemu-doc: Belatedly document QMP command arg & result deprecation

A number of deprecated QMP arguments and results were missed in commit
eb22aeca65 "docs: document deprecation policy & deprecated features in
appendix" (v2.10.0):

* Commit b33945cfff "block: Accept device model name for
  blockdev-open/close-tray" (v2.8.0) deprecated blockdev-open-tray,
  blockdev-close-tray argument @device.

* Commit fbe2d8163e "block: Accept device model name for eject"
  (v2.8.0) deprecated eject argument @device.

* Commit 70e2cb3bd7 "block: Accept device model name for
  blockdev-change-medium" (v2.8.0) deprecated blockdev-change-medium
  argument @device.

* Commit 7a9877a026 "block: Accept device model name for
  block_set_io_throttle" (v2.8.0) deprecated block_set_io_throttle
  argument @device.

* Commit c01c214b69 "block: remove all encryption handling APIs"
  (v2.10.0) deprecated query-named-block-nodes result
  @encryption_key_missing and query-block result @inserted member
  @encryption_key_missing.

* Commit c42e8742f5 "block: Use JSON null instead of "" to disable
  backing file" (v2.10.0) deprecated blockdev-add empty string
  argument @backing.

Since then, we missed a few more:

* Commit 3c605f4074 "commit: Add top-node/base-node options" (v3.1.0)
  deprecated block-commit arguments @base and @top.

* Commit 4db6ceb0b5 "block/dirty-bitmap: add recording and busy
  properties" (v4.0.0) deprecated query-named-block-nodes result
  @dirty-bitmaps member @status, not just query-block.

Make up for all that.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200317115459.31821-2-armbru@redhat.com>

docs/system/deprecated.rst

@@ -180,27 +180,67 @@ QEMU Machine Protocol (QMP) commands
 
 Use ``blockdev-change-medium`` or ``change-vnc-password`` instead.
 
+``blockdev-open-tray``, ``blockdev-close-tray`` argument ``device`` (since 2.8.0)
+'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
+
+Use argument ``id`` instead.
+
+``eject`` argument ``device`` (since 2.8.0)
+'''''''''''''''''''''''''''''''''''''''''''
+
+Use argument ``id`` instead.
+
+``blockdev-change-medium`` argument ``device`` (since 2.8.0)
+''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
+
+Use argument ``id`` instead.
+
+``block_set_io_throttle`` argument ``device`` (since 2.8.0)
+'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
+
+Use argument ``id`` instead.
+
 ``migrate_set_downtime`` and ``migrate_set_speed`` (since 2.8.0)
 ''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
 
 Use ``migrate-set-parameters`` instead.
 
+``query-named-block-nodes`` result ``encryption_key_missing`` (since 2.10.0)
+''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
+
+Always false.
+
+``query-block`` result ``inserted.encryption_key_missing`` (since 2.10.0)
+'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
+
+Always false.
+
+``blockdev-add`` empty string argument ``backing`` (since 2.10.0)
+'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
+
+Use argument value ``null`` instead.
+
 ``migrate-set-cache-size`` and ``query-migrate-cache-size`` (since 2.11.0)
 ''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
 
 Use ``migrate-set-parameters`` and ``query-migrate-parameters`` instead.
 
+``block-commit`` arguments ``base`` and ``top`` (since 3.1.0)
+'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
+
+Use arguments ``base-node`` and ``top-node`` instead.
+
 ``object-add`` option ``props`` (since 5.0)
 '''''''''''''''''''''''''''''''''''''''''''
 
 Specify the properties for the object as top-level arguments instead.
 
-``query-block`` result field ``dirty-bitmaps[i].status`` (since 4.0)
+``query-named-block-nodes`` and ``query-block`` result dirty-bitmaps[i].status (since 4.0)
-''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
+''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
 
 The ``status`` field of the ``BlockDirtyInfo`` structure, returned by
-the query-block command is deprecated. Two new boolean fields,
+these commands is deprecated. Two new boolean fields, ``recording`` and
-``recording`` and ``busy`` effectively replace it.
+``busy`` effectively replace it.
 
 ``query-block`` result field ``dirty-bitmaps`` (Since 4.2)
 ''''''''''''''''''''''''''''''''''''''''''''''''''''''''''