Pages ending with a ".json" suffix in the Module namespace will use the
built-in JSON content model by default. Previously editors had to use
Special:ChangeContentModel to get a JSON page, which requires the
"editcontentmodel" userright that is not granted to a wide set of users
by default.
Bug: T144475
Change-Id: I1546fcad823a55a8c5a93177df8715844de1e87c
This reverts commit 62e1fb0b5f.
Reason for revert: caused several errors:
* unnamespaced HooksTest collides with core’s class of the same name
* Scribunto_LuaError renamed without class alias despite being used in Wikibase
Bug: T314464
Change-Id: I8b151327236bf86945e59823fba155497e4b3fc6
