swift

bb8528f6 - Merge pull request #24746 from Rostepher/usr-lib-install-name-dir-5.1-04-24-2019

Merge pull request #24746 from Rostepher/usr-lib-install-name-dir-5.1-04-24-2019 [Build System: CMake] Update the default install_name_dir to /usr/lib/swift for the standard library and overlays (5.1 04-24-2019 branch).