[SwiftSyntax] Add #_objectFileFormat compilation conditional #117

Job	Run time
Validate generated code	3m 9s
Run tests using swift-syntax-dev-utils (Linux)	24m 28s
Run tests using swift-syntax-dev-utils (Windows)	51m 28s
Test / Linux (5.9 - jammy)	3m 52s
Test / Linux (5.10 - jammy)	3m 47s
Test / Linux (6.0 - jammy)	4m 3s
Test / Linux (nightly-main - jammy)	4m 59s
Test / Windows (5.9 - windows-2022)	22m 19s
Test / Linux (nightly-6.1 - jammy)	4m 55s
Test / Windows (6.0 - windows-2022)	20m 35s
Soundness / API breakage check	0s
Soundness / Documentation check	4m 50s
Soundness / Unacceptable language check	5s
Soundness / License headers check	11s
Soundness / Broken symlinks check	5s
Soundness / Format check	36s
Soundness / Shell check	36s
Soundness / YAML lint check	5s
Soundness / Python lint check	6s
Test / Windows (nightly - windows-2019)	17m 30s
Test / Windows (nightly-6.1 - windows-2019)	16m 17s
	3h 3m 56s

Provide feedback