BridgeJS: Optimize string encoding for JS-to-Swift crossings #76

Job	Run time
Build and Test (ubuntu-24.04, https://download.swift.org/development/ubuntu2404/swift-DEVELOPMENT...	1m 6s
prettier	11s
format	31s
Test BridgeJS against Swift versions (swift:6.2, 602.0.0)	3m 25s
Build for native target (macos-15, Xcode_16.4)	2m 50s
Test BridgeJS against Swift versions (swift:6.1.2, 601.0.0)	2m 46s
Test BridgeJS against Swift versions (swift:6.3, 603.0.0)	2m 48s
Build and Test (ubuntu-22.04, https://download.swift.org/swift-6.1-release/ubuntu2204/swift-6.1-R...	43s
Build and Test (ubuntu-24.04, https://download.swift.org/swift-6.3-branch/ubuntu2404/swift-6.3-DE...	1m 0s
build-examples	2m 58s
Build and Test (ubuntu-22.04, https://download.swift.org/development/ubuntu2204/swift-DEVELOPMENT...	52s
check-bridgejs-generated	2m 54s
deploy-examples	1s
	22m 5s

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