Merge pull request swiftlang#78137 from hamishknight/add-missing-requires

[test] Add missing REQUIRES for `PlaygroundTransform/iuo.swift`

Author: hamishknight

test/PlaygroundTransform/iuo.swift

@@ -2,6 +2,8 @@
 // RUN: %target-playground-build-run-swift(-swift-version 5 -Xfrontend -playground)
 // RUN: %target-playground-build-run-swift(-swift-version 6 -Xfrontend -playground)
 
+// REQUIRES: executable_test
+
 import PlaygroundSupport
 
 class Layer {