right now only the usage of the member type is guarded inside `convertDictionary` the `#include` should also be guarded
<rdar://problem/76598492>
Created attachment 425898 [details] Patch
Committed r275907 (236471@main): <https://commits.webkit.org/236471@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 425898 [details].