[inspector] cache stack frame for call sites

src/heap/heap.h

Index: src/heap/heap.h
diff --git a/src/heap/heap.h b/src/heap/heap.h
index 34177a4f4ba84824e777cdcbe52497a27d75bf2c..01ff88bcc6a16399a01f95042bf4e99ee181e88e 100644
--- a/src/heap/heap.h
+++ b/src/heap/heap.h
@@ -192,6 +192,7 @@ using v8::MemoryPressureLevel;
   V(FixedArray, detached_contexts, DetachedContexts)                           \
   V(ArrayList, retained_maps, RetainedMaps)                                    \
   V(WeakHashTable, weak_object_to_code_table, WeakObjectToCodeTable)           \
+  V(WeakHashTable, stack_frame_cache, StackFrameCache)                         \
   /* weak_new_space_object_to_code_list is an array of weak cells, where */    \
   /* slots with even indices refer to the weak object, and the subsequent */   \
   /* slots refer to the code with the reference to the weak object. */         \
@@ -922,6 +923,8 @@ class Heap {
 
   DependentCode* LookupWeakObjectToCodeDependency(Handle<HeapObject> obj);
 
+  void SetStackFrameCache(WeakHashTable* table);
+
   void CompactWeakFixedArrays();
 
   void AddRetainedMap(Handle<Map> map);