Remove unused byte from Map::instance_sizes field.

src/runtime/runtime-array.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/arguments.h"
 #include "src/elements.h"
 #include "src/messages.h"
 #include "src/runtime/runtime-utils.h"
@@ skipping 1095 matching lines @@
       initial_map = Map::AsElementsKind(initial_map, to_kind);
     }
 
     // If we don't care to track arrays of to_kind ElementsKind, then
     // don't emit a memento for them.
     Handle<AllocationSite> allocation_site;
     if (AllocationSite::GetMode(to_kind) == TRACK_ALLOCATION_SITE) {
       allocation_site = site;
     }
 
-    array = Handle<JSArray>::cast(factory->NewJSObjectFromMap(
-        initial_map, NOT_TENURED, true, allocation_site));
+    array = Handle<JSArray>::cast(
+        factory->NewJSObjectFromMap(initial_map, NOT_TENURED, allocation_site));
   } else {
     array = Handle<JSArray>::cast(factory->NewJSObject(constructor));
 
     // We might need to transition to holey
     ElementsKind kind = constructor->initial_map()->elements_kind();
     if (holey && !IsFastHoleyElementsKind(kind)) {
       kind = GetHoleyElementsKind(kind);
       JSObject::TransitionElementsKind(array, kind);
     }
   }
@@ skipping 192 matching lines @@
 
 RUNTIME_FUNCTION(Runtime_FastOneByteArrayJoin) {
   SealHandleScope shs(isolate);
   DCHECK(args.length() == 2);
   // Returning undefined means that this fast path fails and one has to resort
   // to a slow path.
   return isolate->heap()->undefined_value();
 }
 }  // namespace internal
 }  // namespace v8