Convert AnalyzeCompileWebKitResults to a new-style buildstep to accomidate Twisted's asynchronous requests.
<rdar://problem/104767890>
Pull request: https://github.com/apple/WebKit/pull/331
Pull request: https://github.com/WebKit/WebKit/pull/9316
Committed 261273@main (0bd68d6a56a4): <https://commits.webkit.org/261273@main> Reviewed commits have been landed. Closing PR #9316 and removing active labels.