BridgeJS: allow exported APIs to use imported @JSClass types #1957

Job	Run time
Build for native target (macos-15, Xcode_16.4)	2m 10s
check-bridgejs-generated	2m 44s
build-examples	42m 58s
Build and Test (ubuntu-22.04, https://download.swift.org/swift-6.1-release/ubuntu2204/swift-6.1-R...	2m 45s
Build and Test (ubuntu-24.04, https://download.swift.org/development/ubuntu2404/swift-DEVELOPMENT...	3m 0s
Build and Test (ubuntu-24.04, https://download.swift.org/swift-6.3-branch/ubuntu2404/swift-6.3-DE...	3m 1s
format	33s
Build and Test (ubuntu-22.04, https://download.swift.org/development/ubuntu2204/swift-DEVELOPMENT...	3m 2s
deploy-examples	0s
	1h 0m 13s

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