testsuite, Objective-C : Update a test for newer OS versions.

Objective-C GC is not available for any recent Darwin version, nor
is it available for the upcoming release of Darwin20.

gcc/testsuite/ChangeLog:

	* objc.dg/objc-gc-4.m: Disable for macOS 10.15 and 11.x.

diff --git a/gcc/testsuite/objc.dg/objc-gc-4.m b/gcc/testsuite/objc.dg/objc-gc-4.m
index 96c32788dfe01bd1369f588e6504fec3c80ff03d..8102a5a532fc6d5e23c18c9e754c620bc7f247c0 100644 (file)
--- a/gcc/testsuite/objc.dg/objc-gc-4.m
+++ b/gcc/testsuite/objc.dg/objc-gc-4.m
@@ -3,7 +3,7 @@
 /* Contributed by Ziemowit Laski <zlaski@apple.com>  */
 
 /* { dg-do compile } */
-/* { dg-skip-if "GC API is an error from Darwin16." { *-*-darwin1[6-8]* } { "-fnext-runtime" } { "" } } */
+/* { dg-skip-if "GC API is an error from Darwin16." { *-*-darwin1[6-9]* *-*-darwin2[0-9]* } { "-fnext-runtime" } { "" } } */
 /* { dg-options "-fobjc-gc" } */
 /* { dg-prune-output "cc1obj: warning: '-fobjc-gc' is ignored for '-fgnu-runtime'" } */