Display indirectly implemented types via extended and mixed-in types #4466

Job	Run time
test (ubuntu-latest, dev, main)	5m 12s
test (ubuntu-latest, dev, flutter)	10m 4s
test (ubuntu-latest, dev, packages)	1m 25s
test (ubuntu-latest, dev, sdk-docs)	1m 16s
test (ubuntu-latest, stable, main)	5m 12s
test (ubuntu-latest, stable, packages)	1m 19s
test (macos-latest, dev, main)	4m 30s
test (windows-latest, dev, main)	4m 43s
	33m 41s

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