We have lots of boilerplate code and no description of the structures in our *.messages.in files. This begins to solve both problems.
Pull request: https://github.com/WebKit/WebKit/pull/3712
Committed 253920@main (11ca86229cda): <https://commits.webkit.org/253920@main> Reviewed commits have been landed. Closing PR #3712 and removing active labels.
<rdar://problem/99290902>