The RNA setter now ensures that driver variables are uniquely named
(within the scope of the driver).
Versioning code has been added to ensure this uniqueness. The last
variable with the non-unique name retains the original name; this
ensures that the driver will still evaluate to the same value as before
this fix.
This also introduces a new blenlib function `BLI_listbase_from_link()`,
which can be used to find the entire list from any item within the list.
Manifest Task: T94116
Reviewed By: mont29, JacquesLucke
Maniphest Tasks: T94116
Differential Revision: https://developer.blender.org/D13594
If a valid matching string is found, return that item, otherwise
fallback to the item matching the given index, if any.
This will be useful in RNA override code, and potentially other
areas where data in lists can be referenced by their names or indices.
And make them part of the blender_test runner. The one exception is blenlib
performance tests, which we don't want to run by default. They remain in their
own executable.
Differential Revision: https://developer.blender.org/D8498
