[CMake][ANGLE] Silence -Wreturn-type for gcc and clang
Created attachment 426849 [details] [fast-cq] Patch
Note that there are important steps to take when updating ANGLE. See https://trac.webkit.org/wiki/UpdatingANGLE
Committed r276466 (236926@main): <https://commits.webkit.org/236926@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 426849 [details].
<rdar://problem/77045735>