[wasm] Provide better stack traces for asm.js code

src/objects-inl.h

Index: src/objects-inl.h
diff --git a/src/objects-inl.h b/src/objects-inl.h
index f41bad1d8f5ad55ee5d1a5ff5fbf30ba603fcc49..09e5ebbe295d58e827a134ae8b3fafeb667551b6 100644
--- a/src/objects-inl.h
+++ b/src/objects-inl.h
@@ -2639,6 +2639,11 @@ bool FrameArray::IsWasmFrame(int frame_ix) const {
   return (flags & kIsWasmFrame) != 0;
 }
 
+bool FrameArray::IsAsmJsWasmFrame(int frame_ix) const {
+  const int flags = Flags(frame_ix)->value();
+  return (flags & kIsAsmJsWasmFrame) != 0;
+}
+
 int FrameArray::FrameCount() const {
   const int frame_count = Smi::cast(get(kFrameCountIndex))->value();
   DCHECK_LE(0, frame_count);