This includes fixing some mistakes, as well as removing
redundant text that doesn't add new information, either because
it literally repeats what the code already says, or is actually
duplicated.
Change-Id: I3a8dd8ce57192deda8916cc444c87d7ab1a36515
This follows-up d83fcce5cb, which did something similar for
includes/profiler/.
* Ensure presence of license header.
* Merge any file-level descriptions with the class block,
where it gets seen in generated docs about that class.
* Add any missing `@ingroup` tags to class blocks.
* Remove remaining `@ingroup` from file blocks.
These clutter the Doxygen pages with duplicate entries.
* Fix some misspelled words from 61e0908fa2 and f136c2953c.
Change-Id: I5d21ec159766b799ba519da951d4f0716bae5f9f
This replaces the static Language methods getFallbackFor(),
getFallbacksFor(), and getFallbacksIncludingSiteLanguage(). There is
100% unit and integration test coverage for the new class.
One deliberate functional change: I changed one place where we threw
MWException to InvalidArgumentException.
Bug: T201405
Depends-On: Ie7a89f6ed7d52a0bc01672019ff92e7ee105a1f3
Change-Id: I49222eb55f1feec5b1dcd40f364cffe0c8801855
