Swift 5.7 / Xcode 14 incremental build time 10x slower than Swift 5.6 / Xcode 13

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Thanks for the bug report. Just two other requests:

  1. Please also attach a build timeline showing both a clean and incremental build. In Xcode, you can do this with Product>Perform Action>Build With Timing Summary
  2. Please also add -stats-output-dir /tmp/compiler-perf to OTHER_SWIFT_FLAGS, zip up, and send us the resulting directory.
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