Convert to arbitrary_self_types_pointers. #2000

Job	Run time
Format	13s
Clippy	3m 21s
Docs	3m 44s
Examples Rust nightly	6m 18s
Test forcing wrapper generation	11m 23s
Examples Rust beta	6m 20s
Outdated	10s
Examples Rust stable	4m 54s
Address Sanitizer	12m 12s
Examples macOS	5m 23s
Test Rust nightly	6m 45s
Examples Windows (gnu)	9m 36s
Test Rust beta	10m 50s
Examples Windows (msvc)	7m 40s
Test Rust stable	11m 38s
Test macOS	7m 0s
Test Windows (msvc)	14m 9s
	2h 1m 36s

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