Patchable AllocateArray stub, like instance allocation stubs.

runtime/vm/heap.cc

 // 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.
 
 #include "vm/heap.h"
 
 #include "platform/assert.h"
 #include "platform/utils.h"
 #include "vm/flags.h"
 #include "vm/isolate.h"
@@ skipping 350 matching lines @@
     return pretenure_policy_ > 0;
   } else {
     return false;
   }
 }
 
 
 void Heap::UpdatePretenurePolicy() {
   if (FLAG_disable_alloc_stubs_after_gc) {
     ClassTable* table = isolate_->class_table();
-    for (intptr_t cid = kNumPredefinedCids; cid < table->NumCids(); ++cid) {
-      if (table->IsValidIndex(cid) && table->HasValidClassAt(cid)) {
+    for (intptr_t cid = 1; cid < table->NumCids(); ++cid) {
+      if (((cid >= kNumPredefinedCids) || (cid == kArrayCid)) &&
+          table->IsValidIndex(cid) &&
+          table->HasValidClassAt(cid)) {
         const Class& cls = Class::Handle(isolate_, table->At(cid));
         cls.SwitchAllocationStub();
       }
     }
   }
   ClassHeapStats* stats =
       isolate_->class_table()->StatsWithUpdatedSize(kOneByteStringCid);
   int allocated = stats->pre_gc.new_count;
   int promo_percent = (allocated == 0) ? 0 :
       (100 * stats->promoted_count) / allocated;
@@ skipping 332 matching lines @@
     heap->DisableGrowthControl();
 }
 
 
 NoHeapGrowthControlScope::~NoHeapGrowthControlScope() {
     Heap* heap = reinterpret_cast<Isolate*>(isolate())->heap();
     heap->SetGrowthControlState(current_growth_controller_state_);
 }
 
 }  // namespace dart