[SwiftParser] Experimental feature flags for _borrow and _move #81

Job	Run time
Validate generated code	2m 56s
Run tests using swift-syntax-dev-utils (Windows)	48m 23s
Run tests using swift-syntax-dev-utils (Linux)	21m 52s
Test / Linux (5.9 - jammy)	3m 54s
Test / Linux (5.10 - jammy)	3m 53s
Test / Linux (6.0 - jammy)	3m 57s
Test / Linux (nightly-main - jammy)	4m 47s
Test / Linux (nightly-6.1 - jammy)	4m 36s
Test / Windows (5.9 - windows-2022)	16m 49s
Test / Windows (6.0 - windows-2022)	21m 12s
Test / Windows (nightly - windows-2019)	15m 9s
Test / Windows (nightly-6.1 - windows-2019)	14m 58s
Soundness / API breakage check	0s
Soundness / Documentation check	4m 58s
Soundness / Broken symlinks check	3s
Soundness / License headers check	9s
Soundness / Format check	36s
Soundness / Python lint check	5s
Soundness / Shell check	30s
Soundness / Unacceptable language check	3s
Soundness / YAML lint check	4s
	2h 48m 54s

Provide feedback