[builtins] New frame type for exits to C++ builtins

src/frames-inl.h

Index: src/frames-inl.h
diff --git a/src/frames-inl.h b/src/frames-inl.h
index c45f015a231318300cbc4a9f44421f48f251b59c..2ef69c31dae1553270d62fe631fb50b8c8ff4cc2 100644
--- a/src/frames-inl.h
+++ b/src/frames-inl.h
@@ -98,6 +98,12 @@ inline ExitFrame::ExitFrame(StackFrameIteratorBase* iterator)
     : StackFrame(iterator) {
 }
 
+inline BuiltinExitFrame::BuiltinExitFrame(StackFrameIteratorBase* iterator)
+    : ExitFrame(iterator) {}
+
+inline Object* BuiltinExitFrame::function_slot_object() const {
+  return Memory::Object_at(fp() + kFunctionOffset);
+}
 
 inline StandardFrame::StandardFrame(StackFrameIteratorBase* iterator)
     : StackFrame(iterator) {
@@ -284,7 +290,7 @@ inline JavaScriptFrame* JavaScriptFrameIterator::frame() const {
 inline StandardFrame* StackTraceFrameIterator::frame() const {
   StackFrame* frame = iterator_.frame();
   DCHECK(frame->is_java_script() || frame->is_arguments_adaptor() ||
-         frame->is_wasm());
+         frame->is_wasm() || frame->is_builtin_exit());
   return static_cast<StandardFrame*>(frame);
 }
 
@@ -294,6 +300,10 @@ bool StackTraceFrameIterator::is_javascript() const {
 
 bool StackTraceFrameIterator::is_wasm() const { return frame()->is_wasm(); }
 
+bool StackTraceFrameIterator::is_builtin_exit() const {
+  return frame()->is_builtin_exit();
+}
+
 JavaScriptFrame* StackTraceFrameIterator::javascript_frame() const {
   DCHECK(is_javascript());
   return static_cast<JavaScriptFrame*>(frame());
@@ -304,6 +314,11 @@ WasmFrame* StackTraceFrameIterator::wasm_frame() const {
   return static_cast<WasmFrame*>(frame());
 }
 
+BuiltinExitFrame* StackTraceFrameIterator::builtin_exit_frame() const {
+  DCHECK(is_builtin_exit());
+  return static_cast<BuiltinExitFrame*>(iterator_.frame());
+}
+
 inline StackFrame* SafeStackFrameIterator::frame() const {
   DCHECK(!done());
   DCHECK(frame_->is_java_script() || frame_->is_exit());