Enable stub generation using Hydrogen/Lithium (again)

src/ast.cc

Index: src/ast.cc
diff --git a/src/ast.cc b/src/ast.cc
index 232cb739a1db52769d3ea182658c821ac105033c..c43b9138bb8c81c7fc1e4a7bdb9c8be6fae18e68 100644
--- a/src/ast.cc
+++ b/src/ast.cc
@@ -616,14 +616,6 @@ void ObjectLiteral::Property::RecordTypeFeedback(TypeFeedbackOracle* oracle) {
 // ----------------------------------------------------------------------------
 // Implementation of AstVisitor
 
-bool AstVisitor::CheckStackOverflow() {
-  if (stack_overflow_) return true;
-  StackLimitCheck check(isolate_);
-  if (!check.HasOverflowed()) return false;
-  return (stack_overflow_ = true);
-}
-
-
 void AstVisitor::VisitDeclarations(ZoneList<Declaration*>* declarations) {
   for (int i = 0; i < declarations->length(); i++) {
     Visit(declarations->at(i));