bootstrap: use the new `swiftc -print-target-info` to get the target triple and runtime library path for a possible relative rpath
bootstrap: use the new `swiftc -print-target-info` to get the target triple
and runtime library path for a possible relative rpath

apple/swift-package-manager,abertelrud/swift-package-manager,abertelrud/swift-package-manager,apple/swift-package-manager,abertelrud/swift-package-manager,apple/swift-package-manager,apple/swift-package-manager,abertelrud/swift-package-manager,apple/swift-package-manager,abertelrud/swift-package-manager