Introduce IsUndefined(Isolate*) and IsTheHole(Isolate*)

src/objects-printer.cc

Index: src/objects-printer.cc
diff --git a/src/objects-printer.cc b/src/objects-printer.cc
index 183306583d051aff5fd65ec867fcdfc2a044a540..f44933acc8486f652216871125955d187abb9835 100644
--- a/src/objects-printer.cc
+++ b/src/objects-printer.cc
@@ -465,7 +465,7 @@ void Symbol::SymbolPrint(std::ostream& os) {  // NOLINT
   HeapObject::PrintHeader(os, "Symbol");
   os << "\n - hash: " << Hash();
   os << "\n - name: " << Brief(name());
-  if (name()->IsUndefined()) {
+  if (name()->IsUndefined(GetIsolate())) {
     os << " (" << PrivateSymbolToName() << ")";
   }
   os << "\n - private: " << is_private();
@@ -1222,7 +1222,7 @@ void Name::NameShortPrint() {
   } else {
     DCHECK(this->IsSymbol());
     Symbol* s = Symbol::cast(this);
-    if (s->name()->IsUndefined()) {
+    if (s->name()->IsUndefined(GetIsolate())) {
       PrintF("#<%s>", s->PrivateSymbolToName());
     } else {
       PrintF("<%s>", String::cast(s->name())->ToCString().get());
@@ -1237,7 +1237,7 @@ int Name::NameShortPrint(Vector<char> str) {
   } else {
     DCHECK(this->IsSymbol());
     Symbol* s = Symbol::cast(this);
-    if (s->name()->IsUndefined()) {
+    if (s->name()->IsUndefined(GetIsolate())) {
       return SNPrintF(str, "#<%s>", s->PrivateSymbolToName());
     } else {
       return SNPrintF(str, "<%s>", String::cast(s->name())->ToCString().get());