BridgeJS: Workaround `@_extern` inlining issue take 2 (#670) #2395

Job	Run time
prettier	10s
check-bridgejs-generated	2m 43s
Test BridgeJS against Swift versions (swift:6.1.2, 601.0.0)	2m 52s
Test BridgeJS against Swift versions (swift:6.2, 602.0.0)	3m 6s
Build for native target (macos-15, Xcode_16.4)	2m 20s
format	32s
Build and Test (ubuntu-22.04, https://download.swift.org/development/ubuntu2204/swift-DEVELOPMENT...	17m 7s
Build and Test (ubuntu-24.04, https://download.swift.org/development/ubuntu2404/swift-DEVELOPMENT...	12m 59s
Build and Test (ubuntu-22.04, https://download.swift.org/swift-6.1-release/ubuntu2204/swift-6.1-R...	13m 59s
build-examples	19m 21s
Build and Test (ubuntu-24.04, https://download.swift.org/swift-6.3-branch/ubuntu2404/swift-6.3-DE...	12m 42s
deploy-examples	10s
	1h 28m 1s

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