Trigger old-space GC when scavange made the external heap of old-space larger than max old-space si…

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 196 matching lines @@
   Isolate* isolate = Isolate::Current();
   bool invoke_api_callbacks = (api_callbacks == kInvokeApiCallbacks);
   switch (space) {
     case kNew: {
       VMTagScope tagScope(isolate, VMTag::kGCNewSpaceTagId);
       RecordBeforeGC(kNew, kNewSpace);
       UpdateClassHeapStatsBeforeGC(kNew);
       new_space_->Scavenge(invoke_api_callbacks);
       RecordAfterGC();
       PrintStats();
-      if (new_space_->HadPromotionFailure()) {
+      if (new_space_->HadPromotionFailure() || old_space_->NeedExternalGC()) {
         // Old collections should call the API callbacks.
         CollectGarbage(kOld, kInvokeApiCallbacks);
       }
       break;
     }
     case kOld:
     case kCode: {
       VMTagScope tagScope(isolate, VMTag::kGCOldSpaceTagId);
       bool promotion_failure = new_space_->HadPromotionFailure();
       RecordBeforeGC(kOld, promotion_failure ? kPromotionFailure : kOldSpace);
@@ skipping 351 matching lines @@
     heap->DisableGrowthControl();
 }
 
 
 NoHeapGrowthControlScope::~NoHeapGrowthControlScope() {
     Heap* heap = reinterpret_cast<Isolate*>(isolate())->heap();
     heap->SetGrowthControlState(current_growth_controller_state_);
 }
 
 }  // namespace dart