Currently, it's always at offset zero in inline storage. Let's make this a hard coded assumption because it speeds up speedometer.
Created attachment 324267 [details]
might be the patch
Created attachment 324269 [details]
test on EWS
Created attachment 324283 [details]
Comment on attachment 324283 [details]
View in context: https://bugs.webkit.org/attachment.cgi?id=324283&action=review
> + RELEASE_ASSERT(isInlineOffset(knownPolyProtoOffset));
Created attachment 324292 [details]
patch for landing
need to fix some debug asserts.