Alex Lorenz

@swift-ci please build toolchain

@swift-ci please build toolchain

@swift-ci please build toolchain

@swift-ci please test

This needs some changes to build Foundation that @compnerd has as well.

@swift-ci please test

@swift-ci please test source compatibility

@finagolfin addressed your review comments

@ian-twilightcoder thanks for the feedback! I removed the let constants from Android.swift like you suggested, and it works correctly now in terms of actually using these constants, although the deprecated...

@swift-ci please test