refactor the job type name into a single property

awx/api/serializers.py

@@ -1697,7 +1697,7 @@ class HostSerializer(BaseSerializerWithVariables):
         d.setdefault('recent_jobs', [{
             'id': j.job.id,
             'name': j.job.job_template.name if j.job.job_template is not None else "",
-            'type': j.job.get_real_instance_class()._meta.verbose_name.replace(' ', '_'),
+            'type': j.job.job_type_name,
             'status': j.job.status,
             'finished': j.job.finished,
         } for j in obj.job_host_summaries.select_related('job__job_template').order_by('-created')[:5]])
@@ -2842,7 +2842,7 @@ class JobTemplateMixin(object):
         return [{
             'id': x.id, 'status': x.status, 'finished': x.finished, 'canceled_on': x.canceled_on,
             # Make type consistent with API top-level key, for instance workflow_job
-            'type': x.get_real_instance_class()._meta.verbose_name.replace(' ', '_')
+            'type': x.job_type_name
         } for x in optimized_qs[:10]]
 
     def get_summary_fields(self, obj):