Sychronize updates to identity_role from master branch

Rename ci role to match the module name. Reverted function calls
which would break backward compatibility with previous collection
releases.

Change-Id: Ie59da441d39fe2d0e49430662d853bc9628181e0
(cherry picked from commit cc1b5ecae8)

plugins/modules/identity_role.py

@@ -49,6 +49,10 @@ role:
     returned: On success when I(state) is 'present'.
     type: complex
     contains:
+        domain_id:
+            description: Domain to which the role belongs
+            type: str
+            sample: default
         id:
             description: Unique role ID.
             type: str
@@ -88,20 +92,16 @@ class IdentityRoleModule(OpenStackModule):
         if self.ansible.check_mode:
             self.exit_json(changed=self._system_state_change(state, role))
 
+        changed = False
         if state == 'present':
             if role is None:
-                role = self.conn.create_role(name)
+                role = self.conn.create_role(name=name)
                 changed = True
-            else:
-                changed = False
             self.exit_json(changed=changed, role=role)
-        elif state == 'absent':
-            if role is None:
-                changed = False
-            else:
-                self.conn.delete_role(name)
-                changed = True
-            self.exit_json(changed=changed)
+        elif state == 'absent' and role is not None:
+            self.conn.identity.delete_role(role['id'])
+            changed = True
+        self.exit_json(changed=changed)
 
 
 def main():