[js] Avoid %_ClassOf for collection builtins.

src/js/macros.py

Index: src/js/macros.py
diff --git a/src/js/macros.py b/src/js/macros.py
index 3508cc82701248be3b9cabab99380aadf91959bc..08f25b1f26d37f2123560498ed7646a8c3efb7db 100644
--- a/src/js/macros.py
+++ b/src/js/macros.py
@@ -47,29 +47,28 @@ define kMaxUint32 = 4294967295;
 macro IS_ARRAY(arg)             = (%_IsArray(arg));
 macro IS_ARRAYBUFFER(arg)       = (%_ClassOf(arg) === 'ArrayBuffer');
 macro IS_BOOLEAN(arg)           = (typeof(arg) === 'boolean');
-macro IS_DATAVIEW(arg)          = (%_ClassOf(arg) === 'DataView');
 macro IS_DATE(arg)              = (%IsDate(arg));
 macro IS_ERROR(arg)             = (%_ClassOf(arg) === 'Error');
 macro IS_FUNCTION(arg)          = (%IsFunction(arg));
 macro IS_GENERATOR(arg)         = (%_ClassOf(arg) === 'Generator');
 macro IS_GLOBAL(arg)            = (%_ClassOf(arg) === 'global');
-macro IS_MAP(arg)               = (%_ClassOf(arg) === 'Map');
-macro IS_MAP_ITERATOR(arg)      = (%_ClassOf(arg) === 'Map Iterator');
+macro IS_MAP(arg)               = (%_IsJSMap(arg));
+macro IS_MAP_ITERATOR(arg)      = (%_IsJSMapIterator(arg));
 macro IS_NULL(arg)              = (arg === null);
 macro IS_NULL_OR_UNDEFINED(arg) = (arg == null);
 macro IS_NUMBER(arg)            = (typeof(arg) === 'number');
 macro IS_OBJECT(arg)            = (typeof(arg) === 'object');
 macro IS_PROXY(arg)             = (%_IsJSProxy(arg));
 macro IS_SCRIPT(arg)            = (%_ClassOf(arg) === 'Script');
-macro IS_SET(arg)               = (%_ClassOf(arg) === 'Set');
-macro IS_SET_ITERATOR(arg)      = (%_ClassOf(arg) === 'Set Iterator');
+macro IS_SET(arg)               = (%_IsJSSet(arg));
+macro IS_SET_ITERATOR(arg)      = (%_IsJSSetIterator(arg));
 macro IS_SHAREDARRAYBUFFER(arg) = (%_ClassOf(arg) === 'SharedArrayBuffer');
 macro IS_STRING(arg)            = (typeof(arg) === 'string');
 macro IS_SYMBOL(arg)            = (typeof(arg) === 'symbol');
 macro IS_TYPEDARRAY(arg)        = (%_IsTypedArray(arg));
 macro IS_UNDEFINED(arg)         = (arg === (void 0));
-macro IS_WEAKMAP(arg)           = (%_ClassOf(arg) === 'WeakMap');
-macro IS_WEAKSET(arg)           = (%_ClassOf(arg) === 'WeakSet');
+macro IS_WEAKMAP(arg)           = (%_IsJSWeakMap(arg));
+macro IS_WEAKSET(arg)           = (%_IsJSWeakSet(arg));
 
 # Macro for ES queries of the type: "Type(O) is Object."
 macro IS_RECEIVER(arg) = (%_IsJSReceiver(arg));