job: Move state transitions to Job

This moves BlockJob.status and the closely related functions
(block_)job_state_transition() and (block_)job_apply_verb to Job. The
two QAPI enums are renamed to JobStatus and JobVerb.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
diff --git a/qapi/block-core.json b/qapi/block-core.json
index 63c6011..bb964b4 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -1068,9 +1068,9 @@
   'data': ['commit', 'stream', 'mirror', 'backup'] }
 
 ##
-# @BlockJobVerb:
+# @JobVerb:
 #
-# Represents command verbs that can be applied to a blockjob.
+# Represents command verbs that can be applied to a job.
 #
 # @cancel: see @block-job-cancel
 #
@@ -1088,14 +1088,14 @@
 #
 # Since: 2.12
 ##
-{ 'enum': 'BlockJobVerb',
+{ 'enum': 'JobVerb',
   'data': ['cancel', 'pause', 'resume', 'set-speed', 'complete', 'dismiss',
            'finalize' ] }
 
 ##
-# @BlockJobStatus:
+# @JobStatus:
 #
-# Indicates the present state of a given blockjob in its lifetime.
+# Indicates the present state of a given job in its lifetime.
 #
 # @undefined: Erroneous, default state. Should not ever be visible.
 #
@@ -1134,7 +1134,7 @@
 #
 # Since: 2.12
 ##
-{ 'enum': 'BlockJobStatus',
+{ 'enum': 'JobStatus',
   'data': ['undefined', 'created', 'running', 'paused', 'ready', 'standby',
            'waiting', 'pending', 'aborting', 'concluded', 'null' ] }
 
@@ -1184,7 +1184,7 @@
   'data': {'type': 'str', 'device': 'str', 'len': 'int',
            'offset': 'int', 'busy': 'bool', 'paused': 'bool', 'speed': 'int',
            'io-status': 'BlockDeviceIoStatus', 'ready': 'bool',
-           'status': 'BlockJobStatus',
+           'status': 'JobStatus',
            'auto-finalize': 'bool', 'auto-dismiss': 'bool',
            '*error': 'str' } }
 
@@ -2416,7 +2416,7 @@
 # QEMU 2.12+ job lifetime management semantics.
 #
 # This command will refuse to operate on any job that has not yet reached
-# its terminal state, BLOCK_JOB_STATUS_CONCLUDED. For jobs that make use of
+# its terminal state, JOB_STATUS_CONCLUDED. For jobs that make use of the
 # BLOCK_JOB_READY event, block-job-cancel or block-job-complete will still need
 # to be used as appropriate.
 #