Merge pull request swiftlang#79073 from aschwaighofer/load-pass-plugin-test-fix

Test Frontend/load-pass-plugin.swift requires executable_test

Author: aschwaighofer

test/Frontend/load-pass-plugin.swift

@@ -13,4 +13,6 @@
 // CHECK: TestPlugin: main
 // CHECK: TestPlugin: null.empty() -> ()
 
+// REQUIRES: executable_test
+
 func empty() {}