Merge pull request swiftlang#74932 from swiftlang/egorzhdan/std-function-test-reenable

[cxx-interop] Conditionally re-enable a test for `std::function`

Author: egorzhdan

test/Interop/Cxx/stdlib/use-std-function.swift

@@ -7,8 +7,11 @@
 
 // REQUIRES: executable_test
 
-// rdar://130527427
-// REQUIRES: rdar130527427
+// libstdc++11 declares a templated constructor of std::function with an rvalue-reference parameter,
+// which aren't yet supported in Swift. Therefore initializing a std::function from Swift closures
+// will not work on the platforms that are shipped with this version of libstdc++ (rdar://125816354).
+// XFAIL: LinuxDistribution=ubuntu-22.04
+// XFAIL: LinuxDistribution=rhel-9.4
 
 import StdlibUnittest
 import StdFunction