Merge pull request #72050 from apple/egorzhdan/virtual-method-test-fix

[cxx-interop] Fix virtual method tests on non-macOS

Author: glessard

test/Interop/Cxx/class/inheritance/virtual-methods-typechecker.swift

@@ -14,22 +14,22 @@ let _ = DerivedFromDerived2()
 
 VirtualNonAbstractBase().nonAbstractMethod()
 
-@available(macOS 13.3, *)
+@available(SwiftStdlib 5.8, *)
 func takesImmortalBase(_ i: ImmortalBase) {
   let _ = i.get42()
   let _ = i.getOverridden42()
   let _ = i.getIntValue()
 }
 
-@available(macOS 13.3, *)
+@available(SwiftStdlib 5.8, *)
 func takesImmortal(_ i: Immortal) {
   let _ = i.get42()
   let _ = i.getOverridden42()
   let _ = i.getIntValue()
   i.setIntValue(1)
 }
 
-@available(macOS 13.3, *)
+@available(SwiftStdlib 5.8, *)
 func takesDerivedFromImmortal(_ i: DerivedFromImmortal) {
   let _ = i.get42()
   let _ = i.getOverridden42()

test/Interop/Cxx/class/inheritance/virtual-methods.swift

@@ -27,7 +27,7 @@ VirtualMethodsTestSuite.test("value type") {
   expectEqual(789, d6.getPureInt())
 }
 
-if #available(macOS 13.3, *) {
+if #available(SwiftStdlib 5.8, *) {
   VirtualMethodsTestSuite.test("immortal reference type") {
     let i = Immortal.create()
     expectEqual(42, i.get42())