Warning Undefined property: stdClass::$name on upgrade

[Robert Lyon]

We have a mechanism where is the database information about a plugin is newer than the plugin's file information we:
 (in production mode) warn the user before upgrade
 (not in production mode) display the problem on admin dashboard after upgrade

But there is a problem if the plugin doesn't set a display name or a fallback $config->name

We need to allow the plugin to display it's path name so as to be slightly helpful.

To test:
Have a fully upgraded site then:
1) Set the config version back one day, eg:
UPDATE config SET value = value::int - 100 WHERE field = 'version';

2) Update a plugin's installed value forward one day, eg:
UPDATE artefact_installed SET version = version::int + 100 WHERE name = 'resume';
UPDATE search_installed SET version = version::int + 100 WHERE name = 'elasticsearch';

Before patch - you should see warning when not in production mode

[Mahara Bot (dev-mahara)]

Reviewed: https://reviews.mahara.org/8549
Committed: https://git.mahara.org/mahara/mahara/commit/a1970027b0c5a0e01aad1f223e6f3f276237d8db
Submitter: Cecilia Vela Gurovic (<email address hidden>)
Branch: master

commit a1970027b0c5a0e01aad1f223e6f3f276237d8db
Author: Robert Lyon <email address hidden>
Date: Thu Mar 1 07:16:52 2018 +1300

Bug 1752389: Undefined property: stdClass::$name on upgrade

This is when plugins are out of sync and the plugin doesn't have
$config->name defined

We should fall back to the plugin path as the name

behatnotneeded

Change-Id: I6bb64e785c0d3e12d77b681a34379f70865eaa28
Signed-off-by: Robert Lyon <email address hidden>