BridgeJS: Fix throws hint spacing #2145

Job	Run time
check-bridgejs-generated	2m 43s
Test BridgeJS against Swift versions (swift:6.2, 602.0.0)	2m 59s
build-examples	26m 2s
Build and Test (ubuntu-24.04, https://download.swift.org/swift-6.3-branch/ubuntu2404/swift-6.3-DE...	13m 6s
Build and Test (ubuntu-24.04, https://download.swift.org/development/ubuntu2404/swift-DEVELOPMENT...	12m 18s
format	29s
Build and Test (ubuntu-22.04, https://download.swift.org/development/ubuntu2204/swift-DEVELOPMENT...	17m 2s
Test BridgeJS against Swift versions (swift:6.1.2, 601.0.0)	2m 38s
Build for native target (macos-15, Xcode_16.4)	3m 13s
Build and Test (ubuntu-22.04, https://download.swift.org/swift-6.1-release/ubuntu2204/swift-6.1-R...	14m 11s
deploy-examples	0s
	1h 34m 41s

Provide feedback