[test] Test compiling the overlay swiftinterfaces to binary form (#19438)

Author: jrose-apple

validation-test/ModuleInterface/verify_all_overlays.swift

@@ -0,0 +1,27 @@
+// RUN: %empty-directory(%t)
+// RUN: for x in %platform-sdk-overlay-dir/*.swiftinterface; do [[ $(basename "$x") = Swift.swiftinterface || $(basename "$x") = simd.swiftinterface ]] && continue; %target-swift-frontend "$x" -emit-module -o %t/$(basename "${x/.*}").swiftmodule -disable-objc-attr-requires-foundation-module -enable-resilience -Fsystem %sdk/System/Library/PrivateFrameworks/ -swift-version 4 || echo '%target-os:' $(basename "$x") >> %t/failures.txt; done
+// RUN: diff <(grep '%target-os:' %s) <(sort -f %t/failures.txt)
+
+// REQUIRES: nonexecutable_test
+
+// The following textual interfaces (in alphabetical order) are known not to
+// work with these settings.
+
+// Needs to be built as Swift 4.2.
+macosx: CloudKit.swiftinterface
+ios: CloudKit.swiftinterface
+tvos: CloudKit.swiftinterface
+watchos: CloudKit.swiftinterface
+
+// Missing search path for sourcekitd.framework.
+macosx: SwiftLang.swiftinterface
+
+// Needs to be built as Swift 4.2.
+ios: UIKit.swiftinterface
+tvos: UIKit.swiftinterface
+watchos: UIKit.swiftinterface
+
+// Missing search path for XCTest.framework.
+macosx: XCTest.swiftinterface
+ios: XCTest.swiftinterface
+tvos: XCTest.swiftinterface

validation-test/ModuleInterface/verify_all_overlays_O.swift

@@ -0,0 +1,27 @@
+// RUN: %empty-directory(%t)
+// RUN: for x in %platform-sdk-overlay-dir/*.swiftinterface; do [[ $(basename "$x") = Swift.swiftinterface || $(basename "$x") = simd.swiftinterface ]] && continue; %target-swift-frontend "$x" -emit-module -o %t/$(basename "${x/.*}").swiftmodule -disable-objc-attr-requires-foundation-module -enable-resilience -Fsystem %sdk/System/Library/PrivateFrameworks/ -swift-version 4 -O || echo '%target-os:' $(basename "$x") >> %t/failures.txt; done
+// RUN: diff <(grep '%target-os:' %s) <(sort -f %t/failures.txt)
+
+// REQUIRES: nonexecutable_test
+
+// The following textual interfaces (in alphabetical order) are known not to
+// work with these settings.
+
+// Needs to be built as Swift 4.2.
+macosx: CloudKit.swiftinterface
+ios: CloudKit.swiftinterface
+tvos: CloudKit.swiftinterface
+watchos: CloudKit.swiftinterface
+
+// Missing search path for sourcekitd.framework.
+macosx: SwiftLang.swiftinterface
+
+// Needs to be built as Swift 4.2.
+ios: UIKit.swiftinterface
+tvos: UIKit.swiftinterface
+watchos: UIKit.swiftinterface
+
+// Missing search path for XCTest.framework.
+macosx: XCTest.swiftinterface
+ios: XCTest.swiftinterface
+tvos: XCTest.swiftinterface