Custom functions are not implemented in generated files, so there is no reason to include headers for their types. We already have this behavior for their argument types. This is a minor roadblock for WebCrypto, where I have custom functions that return promises, but no matching headers for promise types. And a desirable behavior in any case, I think.
Created attachment 214470 [details] proposed patch
Comment on attachment 214470 [details] proposed patch Clearing flags on attachment: 214470 Committed r157615: <http://trac.webkit.org/changeset/157615>
All reviewed patches have been landed. Closing bug.