Nick Brassel b04f66f245
Add script for performing compilation size regression investigations. (#15303)
* Add script for performing compilation size regression investigations.

* Print deltas

* Correct scoping.

* Concurrency control

* Job count control, skip zeros (unless no build output), fix usage.

* Add usage under -h arg.

* Updated usage output.

* Copyright header.
2021-11-27 09:11:03 +11:00
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