Implement optional turbofan UnalignedLoad and UnalignedStore operators

src/compiler/typer.cc

Index: src/compiler/typer.cc
diff --git a/src/compiler/typer.cc b/src/compiler/typer.cc
index 71079ae958143003c1fdcbab483b71b133edfaaf..531b501066b0b97997df7bc9c12e290c7ee41b40 100644
--- a/src/compiler/typer.cc
+++ b/src/compiler/typer.cc
@@ -2507,6 +2507,13 @@ Type* Typer::Visitor::TypeLoadParentFramePointer(Node* node) {
   return Type::Internal();
 }
 
+Type* Typer::Visitor::TypeUnalignedLoad(Node* node) { return Type::Any(); }
+
+Type* Typer::Visitor::TypeUnalignedStore(Node* node) {
+  UNREACHABLE();
+  return nullptr;
+}
+
 Type* Typer::Visitor::TypeCheckedLoad(Node* node) { return Type::Any(); }