Merge pull request #462 from madsmtm/new-objc-features #2075

Job	Run time
Check formatting	10s
Check MSRV	1m 38s
Lint macOS 64bit	8m 27s
Lint iOS 32bit	2m 28s
Lint GNUStep + exceptions	1m 53s
Lint header-translator	1m 50s
Lint test-assembly	45s
Test macOS 12	6m 41s
Compiler UI	1m 30s
Verify header translator output	1m 34s
Assembly tests	1m 9s
Test Compiler-RT	57s
Test GNUStep with libobjc2 v1.9	2m 11s
Test GNUStep with libobjc2 v2.0	2m 25s
Test GNUStep with libobjc2 v2.1 on nightly	3m 51s
Test GNUStep 32bit	2m 45s
Check icrate features	0s
${{ matrix.name }}	0s
Test on iOS simulator w. dinghy	0s
	40m 14s

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