Swift 5.3 Release

[shims] Add AppKit overlay shims

(cherry picked from commit c8523e59e403cd53f24ae564d1c8145b48369d21)
(cherry picked from commit 250f1663302d573e3161108318446a5d2ab6fd3e)

Swift 5.2.5 Release

swift-5.2.5-RELEASE

Change version string to 'swift-5.2.5-RELEASE'

Swift 5.2.4 Release

swift-5.2.4-RELEASE

Change version string to 'swift-5.2.4-RELEASE'

Swift 5.2.3 Release

swift-5.2.3-RELEASE

Change version string to 'swift-5.2.3-RELEASE'

Swift 5.2.2 Release

swift-5.2.2-RELEASE

Change version string to 'swift-5.2.2-RELEASE'

Swift 5.2.1 Release

swift-5.2.1-RELEASE

Change version string to 'swift-5.2.1-RELEASE'

Swift 5.2 Release

swift-5.2-RELEASE

Change version string to 'swift-5.2-RELEASE'

Swift 5.1.5 Release

swift-5.1.5-RELEASE

Change version string to 'swift-5.1.5-RELEASE'

Swift 5.1.2 Release

swift-5.1.2-RELEASE

Bumping Swift version number to 5.1.2

Swift 5.1 Release

swift-5.1-RELEASE

Change version string to 'swift-5.1-RELEASE'