歴史
[1] Editorial: clarify typedef aliasing limitations. (#253)
(tobie著, )
https://github.com/heycam/webidl/commit/b4bc6028be5f1102fe35e28841265138673c10b2
[3] Include typedefs in the JSON type definition (#505)
(tobie著, )
https://github.com/heycam/webidl/commit/3bcebf81f937171790ecf5dfd0f965457e17083b
[4] Is DOMHighResTimeStamp a "JSON type"? · Issue #504 · heycam/webidl
()
https://github.com/heycam/webidl/issues/504
[5] Include typedefs in the JSON type definition by tobie · Pull Request #505 · heycam/webidl
()
https://github.com/heycam/webidl/pull/505