Revert "Avoid escaping array-to-pointer conversions"
Revert "Avoid escaping array-to-pointer conversions"

This reverts commit 3b7df215161607ecf9dddda9322654edfc6b4a1b.

 - This is causing crashes in llbuild when used in some cases, so we apparently
   have some missing test coverage. Will further investigate to find the actual
   bug...

apple/swift-llbuild,apple/swift-llbuild,apple/swift-llbuild,apple/swift-llbuild,apple/swift-llbuild,apple/swift-llbuild,apple/swift-llbuild