VM: Store edge counters in one per-function array.

runtime/vm/object.h

 // 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.
 
 #ifndef VM_OBJECT_H_
 #define VM_OBJECT_H_
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/utils.h"
@@ skipping 2586 matching lines @@
 
   // Slow function, use in asserts to track changes in important library
   // functions.
   int32_t SourceFingerprint() const;
 
   // Return false and report an error if the fingerprint does not match.
   bool CheckSourceFingerprint(const char* prefix, int32_t fp) const;
 
   // Works with map [deopt-id] -> ICData.
   void SaveICDataMap(
-      const ZoneGrowableArray<const ICData*>& deopt_id_to_ic_data) const;
+      const ZoneGrowableArray<const ICData*>& deopt_id_to_ic_data,
+      const Array& edge_counters_array) const;
   void RestoreICDataMap(
       ZoneGrowableArray<const ICData*>* deopt_id_to_ic_data) const;
 
   RawArray* ic_data_array() const;
   void ClearICDataArray() const;
 
   // Sets deopt reason in all ICData-s with given deopt_id.
   void SetDeoptReasonForAll(intptr_t deopt_id, ICData::DeoptReasonId reason);
 
   static const int kCtorPhaseInit = 1 << 0;
@@ skipping 5504 matching lines @@
 
 
 RawObject* MegamorphicCache::GetTargetFunction(const Array& array,
                                                intptr_t index) {
   return array.At((index * kEntryLength) + kTargetFunctionIndex);
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_