BridgeJS: Unify Swift type lookup logic between import/export #1945

Job	Run time
Build and Test (ubuntu-22.04, https://download.swift.org/development/ubuntu2204/swift-DEVELOPMENT...	17m 17s
build-examples	44m 7s
Build for native target (macos-15, Xcode_16.4)	4m 48s
format	35s
Build and Test (ubuntu-24.04, https://download.swift.org/swift-6.3-branch/ubuntu2404/swift-6.3-DE...	12m 41s
Build and Test (ubuntu-22.04, https://download.swift.org/swift-6.1-release/ubuntu2204/swift-6.1-R...	13m 31s
check-bridgejs-generated	2m 57s
Build and Test (ubuntu-24.04, https://download.swift.org/development/ubuntu2404/swift-DEVELOPMENT...	13m 7s
deploy-examples	-1s
	1h 49m 2s

Provide feedback