ClangBuildAnalyzer reports that IsoMallocInlines.h is an expensive header to parse. Consider this header as stable and add it to WebCore's precompiled header so it's parsed once.
<rdar://problem/104453981>
Pull request: https://github.com/WebKit/WebKit/pull/8864
Committed 259330@main (1c0aa1d5a069): <https://commits.webkit.org/259330@main> Reviewed commits have been landed. Closing PR #8864 and removing active labels.