[testsuite] Skip this test correctly also on macOS.

llvm-svn: 354204

lldb/packages/Python/lldbsuite/test/lang/cpp/class-template-parameter-pack/TestClassTemplateParameterPack.py

@@ -5,6 +5,5 @@ lldbinline.MakeInlineTest(
     __file__, globals(), [
         decorators.expectedFailureAll(
             compiler="gcc"),
-        decorators.expectedFailureAll(
-            oslist=['ios', 'watchos', 'tvos', 'bridgeos'],
-            bugnumber="rdar://problem/48128064: class template declaration unexpectedly shadowed by VarDecl on MacOS")])
+        # rdar://problem/48128064
+        decorators.skipIfDarwin])