Add support for shorttags in functions #597

Job	Run time
Tests (ubuntu-latest, 8.0, default)	1m 24s
Tests (ubuntu-latest, 7.4, default)	1m 23s
Tests (ubuntu-latest, 7.3, default)	1m 33s
Tests (ubuntu-latest, 8.4, default)	1m 24s
Tests (ubuntu-latest, 8.1, default)	1m 17s
Tests (ubuntu-latest, 8.2, default)	1m 27s
Tests (ubuntu-latest, 7.2, default)	1m 28s
Tests (windows-latest, 7.3, default)	1m 46s
Tests (windows-latest, 8.4, default)	1m 52s
Tests (ubuntu-latest, 8.3, default)	1m 22s
Tests (windows-latest, 7.2, default)	2m 39s
Tests (windows-latest, 8.2, default)	1m 48s
Tests (windows-latest, 8.1, default)	1m 59s
Tests (windows-latest, 8.0, default)	1m 53s
Tests (windows-latest, 8.3, default)	2m 24s
Tests (windows-latest, 7.4, default)	2m 17s
	27m 56s

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