Support JSString in BridgeJS interop #2475

Job	Run time
Test BridgeJS against Swift versions (swift:6.2, 602.0.0)	3m 16s
prettier	13s
format	1m 13s
check-bridgejs-generated	2m 41s
Build and Test (ubuntu-24.04, https://download.swift.org/swift-6.3-branch/ubuntu2404/swift-6.3-DE...	13m 22s
build-examples	19m 46s
Build and Test (ubuntu-22.04, https://download.swift.org/development/ubuntu2204/swift-DEVELOPMENT...	17m 43s
Build for native target (macos-15, Xcode_16.4)	2m 54s
Test BridgeJS against Swift versions (swift:6.1.2, 601.0.0)	3m 16s
Build and Test (ubuntu-22.04, https://download.swift.org/swift-6.1-release/ubuntu2204/swift-6.1-R...	12m 52s
Build and Test (ubuntu-24.04, https://download.swift.org/development/ubuntu2404/swift-DEVELOPMENT...	13m 31s
deploy-examples	-1s
	1h 30m 46s

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