- Canonicalize types, type_arguments only when the object is marked as being from the core librarie…

runtime/vm/pages.h

 // Copyright (c) 2011, 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.
 
 #ifndef VM_PAGES_H_
 #define VM_PAGES_H_
 
 #include <map>
 
 #include "vm/freelist.h"
@@ skipping 109 matching lines @@
 
   bool CanGrowPageSpace(intptr_t size_in_bytes);
 
   // A garbage collection is considered as successful if more than
   // heap_growth_ratio % of memory got deallocated by the garbage collector.
   // In this case garbage collection will be performed next time. Otherwise
   // the heap will grow.
   void EvaluateGarbageCollection(intptr_t in_use_before, intptr_t in_use_after,
                                  int64_t start, int64_t end);
 
-  void Enable() {
-    is_enabled_ = true;
+  void set_is_enabled(bool state) {
+    is_enabled_ = state;
+  }
+  bool is_enabled() {
+    return is_enabled_;
   }
 
  private:
   bool is_enabled_;
 
   // Heap growth control variable.
   intptr_t grow_heap_;
 
   // If the garbage collector was not able to free more than heap_growth_ratio_
   // memory, then the heap is grown. Otherwise garbage collection is performed.
@@ skipping 55 matching lines @@
   // Collect the garbage in the page space using mark-sweep.
   void MarkSweep(bool invoke_api_callbacks);
 
   static HeapPage* PageFor(RawObject* raw_obj) {
     return reinterpret_cast<HeapPage*>(
         RawObject::ToAddr(raw_obj) & ~(kPageSize -1));
   }
 
   void StartEndAddress(uword* start, uword* end) const;
 
-  void EnableGrowthControl() {
-    page_space_controller_.Enable();
+  void SetGrowthControlState(bool state) {
+    page_space_controller_.set_is_enabled(state);
+  }
+
+  bool GrowthControlState() {
+    return page_space_controller_.is_enabled();
   }
 
   void WriteProtect(bool read_only);
 
   typedef std::map<RawObject*, void*> PeerTable;
 
   void SetPeer(RawObject* raw_obj, void* peer);
 
   void* GetPeer(RawObject* raw_obj);
 
@@ skipping 52 matching lines @@
   PageSpaceController page_space_controller_;
 
   friend class PageSpaceController;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(PageSpace);
 };
 
 }  // namespace dart
 
 #endif  // VM_PAGES_H_