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

tests/co19/co19-runtime.status

 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 [ $compiler == none && $runtime == vm && $checked ]
 LibTest/core/Strings/concatAll_A04_t01: Fail, OK # checks for ArgumentError. TypeError is ok too. co19 issue 366
 LibTest/core/Strings/join_A04_t01: Fail, OK # checks for ArgumentError. TypeError is ok too. co19 issue 366
 
 LibTest/core/int/operator_division_A01_t01: Fail # ~/ returns ints, issue 361
 
@@ skipping 507 matching lines @@
 LibTest/core/IllegalJSRegExpException/toString_A01_t01: Fail # IllegalJSRegExpException has been removed. co19 issue 375.
 LibTest/core/IllegalJSRegExpException/IllegalJSRegExpException_A01_t01: Fail # IllegalJSRegExpException has been removed. co19 issue 375.
 
 LibTest/core/Map/containsKey_A01_t02: Fail # Doesn't expect null to be allowed in Set or Map keys (issue 377).
 LibTest/core/Map/operator_subscript_A01_t02: Fail # Doesn't expect null to be allowed in Set or Map keys (issue 377).
 LibTest/core/Map/operator_subscripted_assignment_A01_t02: Fail # Doesn't expect null to be allowed in Set or Map keys (issue 377).
 LibTest/core/Map/remove_A01_t02: Fail # Doesn't expect null to be allowed in Set or Map keys (issue 377).
 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).
 
 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).
 LibTest/core/String/charCodeAt_A03_t01: Fail # Deprecated string members removed (issue 382).
 LibTest/core/String/charCodeAt_A01_t01: Fail # Deprecated string members removed (issue 382).
 LibTest/core/String/splitChars_A01_t01: Fail # Deprecated string members removed (issue 382).
 
 Language/14_Types/6_Type_dynamic_A03_t01: Fail # Renamed Date to DateTime (issue 373, 374)
@@ skipping 58 matching lines @@
 Language/11_Expressions/05_Strings/1_String_Interpolation_A04_t01: Fail # StringBuffer renamed add to write. co19 issue 388.
 
 [ $compiler == none && $runtime == vm && $unchecked ]
 LibTest/core/Future/chain_A02_t05: Fail # Future is in async library. co19 issue 367
 LibTest/core/Future/transform_A02_t04: Fail # Future is in async library. co19 issue 367
 
 [ $compiler == none && $runtime == vm && $checked ]
 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
 
 [ $compiler == none && $arch == arm ]
 *: Skip
 
 [ $compiler == none && $arch == simmips ]
 *: Skip
 
 [ $compiler == none && $arch == mips ]
 *: Skip