Simply use the variable index to put them into the right ScopeInfo slot rather than sorting

src/ast/variables.cc

Index: src/ast/variables.cc
diff --git a/src/ast/variables.cc b/src/ast/variables.cc
index 0541f942f0949fbe4642cb07f752216114a8ef74..68983fb289a9535c4eedbde73656596561d0f400 100644
--- a/src/ast/variables.cc
+++ b/src/ast/variables.cc
@@ -65,12 +65,5 @@ bool Variable::IsStaticGlobalObjectProperty() const {
 }
 
 
-int Variable::CompareIndex(Variable* const* v, Variable* const* w) {
-  int x = (*v)->index();
-  int y = (*w)->index();
-  // Consider sorting them according to type as well?
-  return x - y;
-}
-
 }  // namespace internal
 }  // namespace v8