test: more module interface tests

Author: nkcsgexi

test/ModuleInterface/spi-available.swift

@@ -4,12 +4,15 @@
 // RUN: %target-swift-frontend -compile-module-from-interface %t/Foo.swiftinterface -o %t/Foo.public.swiftmodule -module-name Foo
 // RUN: %target-swift-frontend -compile-module-from-interface %t/Foo.private.swiftinterface -o %t/Foo.private.swiftmodule -module-name Foo
 
-@_spi_available(macOS 10.10, *)
+@_spi_available(macOS 10.10, tvOS 14.0, *)
 @available(iOS 8.0, *)
 public class SPIClass {}
 
 // RUN: %FileCheck %s -check-prefix CHECK-PUBLIC < %t/Foo.swiftinterface
 // RUN: %FileCheck %s -check-prefix CHECK-PRIVATE < %t/Foo.private.swiftinterface
 
 // CHECK-PUBLIC: @available(macOS, unavailable)
+// CHECK-PUBLIC: @available(tvOS, unavailable)
+
 // CHECK-PRIVATE: @_spi_available(macOS, introduced: 10.10)
+// CHECK-PRIVATE: @_spi_available(tvOS, introduced: 14.0)