This is micro-optimization of closure code to avoid binding the closure
to $this where it is not needed.
Created by I25a17fb22b6b669e817317a0f45051ae9c608208
Change-Id: I0ffc6200f6c6693d78a3151cb8cea7dce7c21653
This allows us to distinguish between "Foo" and "User:Foo" in the UI.
Follows-Up: Ia0ddf78646ec4c8ae0b84b6d5b46ef5e51c8e8c1
Change-Id: I960cbd566e444380a253bde364bc9da7e2975823
Add a new preference filter for use with HTMLTitlesMultiSelectField, to simplify
the process of saving article text as IDs in user preferences, and reading those
IDs back to text for presentation in the form.
Example usage in the Echo extension: I67f751eae5fdc5bccff7fe3047227d432c1cb8d5
Change-Id: Ia0ddf78646ec4c8ae0b84b6d5b46ef5e51c8e8c1