Refix issue 1472. The previous fix worked for the example in the bug

src/ast.cc

Index: src/ast.cc
===================================================================
--- src/ast.cc	(revision 8315)
+++ src/ast.cc	(working copy)
@@ -925,26 +925,6 @@
 }
 
 
-bool RegExpDisjunction::ContainsExpandedQuantifier() {
-  if (contains_expanded_quantifier_) return true;
-  int len = alternatives_->length();
-  for (int i = 0; i < len; i++) {
-    if (alternatives_->at(i)->ContainsExpandedQuantifier()) return true;
-  }
-  return false;
-}
-
-
-bool RegExpAlternative::ContainsExpandedQuantifier() {
-  if (contains_expanded_quantifier_) return true;
-  int len = nodes_->length();
-  for (int i = 0; i < len; i++) {
-    if (nodes_->at(i)->ContainsExpandedQuantifier()) return true;
-  }
-  return false;
-}
-
-
 // Convert regular expression trees to a simple sexp representation.
 // This representation should be different from the input grammar
 // in as many cases as possible, to make it more difficult for incorrect