Parser.cpp is quite large, and under some circumstances, I've seen it cause the compiler to appear to hang when compiling the unified file it got included in. Excluding it from being in a unified file resolved the hang. This patch will apply this change.
<rdar://problem/104992506>
Pull request: https://github.com/WebKit/WebKit/pull/9582
Committed 259803@main (eb73fc333d55): <https://commits.webkit.org/259803@main> Reviewed commits have been landed. Closing PR #9582 and removing active labels.