Autoloading WordPress classes #812

Job	Run time
Core running from build / Core running from build / Linux	1m 57s
Core running from src / Core running from src / Linux	2m 2s
Core running from build / Core running from build / Windows	3m 50s
Core running from src / Core running from src / Windows	3m 43s
Core running from src / Core running from src / MacOS	3m 55s
Core running from build / Core running from build / MacOS	3m 6s
Gutenberg running from build / Gutenberg running from build / Linux	7m 20s
Gutenberg running from src / Gutenberg running from src / Linux	7m 28s
Gutenberg running from build / Gutenberg running from build / Windows	10m 21s
Gutenberg running from src / Gutenberg running from src / Windows	9m 44s
Gutenberg running from build / Gutenberg running from build / MacOS	10m 21s
Gutenberg running from src / Gutenberg running from src / MacOS	12m 6s
Slack Notifications	0s
Leave WordPress Playground details	0s
Failed workflow tasks	0s
	1h 15m 53s

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