Make Set.containsAll accept Iterable. Deprecate Set.isSubsetOf.

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..7d1a0a0e8720f841bc1fe13d2937fc6ab44bb199 100644
--- a/tests/co19/co19-runtime.status
+++ b/tests/co19/co19-runtime.status
@@ -525,11 +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/Set/isSubsetOf_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).
 
@@ -608,21 +606,16 @@ LibTest/core/Future/transform_A02_t04: Fail # Future is in async library. co19 i
 LibTest/isolate/SendPort/call_A01_t01: Fail # Future is in async library. co19 issue 367
 Language/14_Types/4_Interface_Types_A08_t06: Fail # Moved collection classes from core to collection. co19 issue 371.
 
-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/containsAll_A01_t02: 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