0e534d4dca Fix incorrect Doxygen comments (practicalswift)
Pull request description:
Fix broken Doxygen comments.
This commit was taken from #13914 which now only covers `-Wdocumentation`.
Tree-SHA512: dddbca16bb792b8193e5f417151b5eace9acc942a321f1bc095b906e98889e3bd93509fe112ab6a24ee1f6a3a918db905bda7acefd53774fe3e6ebe669fb51ac