[inspector] cache stack frame for call sites

src/objects-inl.h

Index: src/objects-inl.h
diff --git a/src/objects-inl.h b/src/objects-inl.h
index c1a8e223b60c2dd747ef6a35b7f2fa862e1839b6..54d2443b2aa4d88659abc434e992c27f7fc9e838 100644
--- a/src/objects-inl.h
+++ b/src/objects-inl.h
@@ -4011,6 +4011,7 @@ ACCESSORS(BytecodeArray, constant_pool, FixedArray, kConstantPoolOffset)
 ACCESSORS(BytecodeArray, handler_table, FixedArray, kHandlerTableOffset)
 ACCESSORS(BytecodeArray, source_position_table, ByteArray,
           kSourcePositionTableOffset)
+ACCESSORS(BytecodeArray, stack_frame_cache, Object, kStackFrameCacheOffset)
 
 Address BytecodeArray::GetFirstBytecodeAddress() {
   return reinterpret_cast<Address>(this) - kHeapObjectTag + kHeaderSize;
@@ -5237,6 +5238,22 @@ void AbstractCode::set_source_position_table(ByteArray* source_position_table) {
   }
 }
 
+Object* AbstractCode::stack_frame_cache() {
+  if (IsCode()) {
+    return GetCode()->stack_frame_cache();
+  } else {
+    return GetBytecodeArray()->stack_frame_cache();
+  }
+}
+
+void AbstractCode::set_stack_frame_cache(Object* stack_frame_cache) {
+  if (IsCode()) {
+    GetCode()->set_stack_frame_cache(stack_frame_cache);
+  } else {
+    GetBytecodeArray()->set_stack_frame_cache(stack_frame_cache);
+  }
+}
+
 int AbstractCode::SizeIncludingMetadata() {
   if (IsCode()) {
     return GetCode()->SizeIncludingMetadata();
@@ -5244,6 +5261,7 @@ int AbstractCode::SizeIncludingMetadata() {
     return GetBytecodeArray()->SizeIncludingMetadata();
   }
 }
+
 int AbstractCode::ExecutableSize() {
   if (IsCode()) {
     return GetCode()->ExecutableSize();
@@ -6628,6 +6646,7 @@ SMI_ACCESSORS(JSMessageObject, error_level, kErrorLevelOffset)
 INT_ACCESSORS(Code, instruction_size, kInstructionSizeOffset)
 INT_ACCESSORS(Code, prologue_offset, kPrologueOffset)
 INT_ACCESSORS(Code, constant_pool_offset, kConstantPoolOffset)
+ACCESSORS(Code, stack_frame_cache, Object, kStackFrameCacheOffset)
 #define CODE_ACCESSORS(name, type, offset)           \
   ACCESSORS_CHECKED2(Code, name, type, offset, true, \
                      !GetHeap()->InNewSpace(value))
@@ -6645,6 +6664,7 @@ void Code::WipeOutHeader() {
   WRITE_FIELD(this, kHandlerTableOffset, NULL);
   WRITE_FIELD(this, kDeoptimizationDataOffset, NULL);
   WRITE_FIELD(this, kSourcePositionTableOffset, NULL);
+  WRITE_FIELD(this, kStackFrameCacheOffset, NULL);
   // Do not wipe out major/minor keys on a code stub or IC
   if (!READ_FIELD(this, kTypeFeedbackInfoOffset)->IsSmi()) {
     WRITE_FIELD(this, kTypeFeedbackInfoOffset, NULL);