[inspector] cache stack frame for call sites

src/heap/heap.cc

Index: src/heap/heap.cc
diff --git a/src/heap/heap.cc b/src/heap/heap.cc
index cfeda5d55711a71cd650131edd145da162d9e986..a186f4a7c265bacc36730074aa1fc4e7d0c05883 100644
--- a/src/heap/heap.cc
+++ b/src/heap/heap.cc
@@ -2815,6 +2815,9 @@ void Heap::CreateInitialObjects() {
       *WeakHashTable::New(isolate(), 16, USE_DEFAULT_MINIMUM_CAPACITY,
                           TENURED));
 
+  set_stack_frame_cache(*WeakHashTable::New(
+      isolate(), 16, USE_DEFAULT_MINIMUM_CAPACITY, TENURED));
+
   set_weak_new_space_object_to_code_list(
       ArrayList::cast(*(factory->NewFixedArray(16, TENURED))));
   weak_new_space_object_to_code_list()->SetLength(0);
@@ -2937,6 +2940,7 @@ bool Heap::RootCanBeWrittenAfterInitialization(Heap::RootListIndex root_index) {
     case kMicrotaskQueueRootIndex:
     case kDetachedContextsRootIndex:
     case kWeakObjectToCodeTableRootIndex:
+    case kStackFrameCacheRootIndex:
     case kWeakNewSpaceObjectToCodeListRootIndex:
     case kRetainedMapsRootIndex:
     case kCodeCoverageListRootIndex:
@@ -5855,13 +5859,16 @@ void Heap::AddWeakObjectToCodeDependency(Handle<HeapObject> obj,
   DCHECK_EQ(*dep, LookupWeakObjectToCodeDependency(obj));
 }
 
-
 DependentCode* Heap::LookupWeakObjectToCodeDependency(Handle<HeapObject> obj) {
   Object* dep = weak_object_to_code_table()->Lookup(obj);
   if (dep->IsDependentCode()) return DependentCode::cast(dep);
   return DependentCode::cast(empty_fixed_array());
 }
 
+void Heap::SetStackFrameCache(WeakHashTable* table) {
+  set_stack_frame_cache(table);
+}
+
 namespace {
 void CompactWeakFixedArray(Object* object) {
   if (object->IsWeakFixedArray()) {