r287382 made libANGLE go into /System/Library/PrivateFrameworks/WebCore.framework/Versions/A/Frameworks on iOS, which is obviously wrong (there is no Versions/A on iOS).
<rdar://87072368>
libwebrtc isn't installed in the wrong place, but libwebrtc.xcconfig has some similar bad logic in it.
Created attachment 448342 [details] Patch
Note that there are important steps to take when updating ANGLE. See https://trac.webkit.org/wiki/UpdatingANGLE
The mac-debug-wk1 test that EWS flagged, imported/w3c/web-platform-tests/css/css-text/text-transform/text-transform-capitalize-007.html, has a flakey history and the patch changes were build product location related.
Committed r287642 (245746@trunk): <https://commits.webkit.org/245746@trunk>