Deprecate Set.isSubsetOf, make Set.containsAll accept iterable.

tests/co19/co19-runtime.status

Index: tests/co19/co19-runtime.status
diff --git a/tests/co19/co19-runtime.status b/tests/co19/co19-runtime.status
index 5f1b0b2b12b06de480b0fd8e43c1dc6515b68446..b56ee19a45a82927415f05975797a33dd8fab788 100644
--- a/tests/co19/co19-runtime.status
+++ b/tests/co19/co19-runtime.status
@@ -525,13 +525,9 @@ LibTest/core/Map/remove_A01_t02: Fail # Doesn't expect null to be allowed in Set
 LibTest/core/Set/add_A01_t02: Fail # Doesn't expect null to be allowed in Set or Map keys (issue 377).
 LibTest/core/Set/addAll_A01_t02: Fail # Doesn't expect null to be allowed in Set or Map keys (issue 377).
 LibTest/core/Set/contains_A01_t02: Fail # Doesn't expect null to be allowed in Set or Map keys (issue 377).
-LibTest/core/Set/containsAll_A01_t02: Fail # Doesn't expect null to be allowed in Set or Map keys (issue 377).
-LibTest/core/Set/intersection_A03_t01: Fail # Doesn't expect null to be allowed in Set or Map keys (issue 377).
-LibTest/core/Set/isSubsetOf_A01_t02: Fail # Doesn't expect null to be allowed in Set or Map keys (issue 377).
 LibTest/core/Set/remove_A01_t02: Fail # Doesn't expect null to be allowed in Set or Map keys (issue 377).
 LibTest/core/Set/removeAll_A01_t02: Fail # Doesn't expect null to be allowed in Set or Map keys (issue 377).
-
-LibTest/core/Map/forEach_A01_t07: Fail # Doesn't expect concurrent modification error (issue 376).
+LibTest/core/Set/isSubsetOf_A01_t02: Fail # Doesn't expect null to be allowed in Set or Map keys (issue 377).
 
 LibTest/core/String/charCodes_A01_t01: Fail # Deprecated string members removed (issue 382).
 LibTest/core/String/charCodeAt_A02_t01: Fail # Deprecated string members removed (issue 382).
@@ -610,20 +606,20 @@ Language/14_Types/4_Interface_Types_A08_t06: Fail # Moved collection classes fro
 
 LibTest/core/Set/add_A01_t06: Fail # issue 390
 LibTest/core/Set/containsAll_A01_t01: Fail # issue 390
-LibTest/core/Set/containsAll_A01_t02: Pass # issue 390
 LibTest/core/Set/every_A01_t01: Fail # issue 390
 LibTest/core/Set/every_A01_t03: Fail # issue 390
 LibTest/core/Set/forEach_A01_t05: Fail # issue 390
 LibTest/core/Set/intersection_A01_t01: Fail # issue 390
 LibTest/core/Set/intersection_A01_t02: Fail # issue 390
 LibTest/core/Set/intersection_A01_t03: Fail # issue 390
-LibTest/core/Set/intersection_A03_t01: Pass # issue 390
-LibTest/core/Set/isSubsetOf_A01_t01: Fail # issue 390
-LibTest/core/Set/isSubsetOf_A01_t02: Pass # issue 390
 LibTest/core/Set/removeAll_A01_t01: Fail # issue 390
 LibTest/core/Set/remove_A01_t01: Fail # issue 390
 LibTest/core/Set/remove_A01_t03: Fail # issue 390
 
+[ $compiler == none && $runtime == vm && $unchecked ]
+LibTest/core/Set/containsAll_A01_t02: Fail # Doesn't expect null to be allowed in Set or Map keys (issue 377). Succeedes in checked mode due to Issue 390.
+LibTest/core/Set/intersection_A03_t01: Fail # Doesn't expect null to be allowed in Set or Map keys (issue 377). Succeedes in checked mode due to Issue 390.
+
 [ $compiler == none && $arch == simarm ]
 *: Skip