Reland Extend big-disjunction optimization to case-independent regexps

src/list.h

Index: src/list.h
diff --git a/src/list.h b/src/list.h
index 00cbd40312025ad8ba2fcc40a1f17b2a8409cd22..b636449c423b9d9ea7a184de78a3580a49c5780e 100644
--- a/src/list.h
+++ b/src/list.h
@@ -149,12 +149,15 @@ class List {
   void Iterate(Visitor* visitor);
 
   // Sort all list entries (using QuickSort)
-  void Sort(int (*cmp)(const T* x, const T* y), size_t start, size_t length);
-  void Sort(int (*cmp)(const T* x, const T* y));
+  template <typename CompareFunction>
+  void Sort(CompareFunction cmp, size_t start, size_t length);
+  template <typename CompareFunction>
+  void Sort(CompareFunction cmp);
   void Sort();
-  void StableSort(int (*cmp)(const T* x, const T* y), size_t start,
-                  size_t length);
-  void StableSort(int (*cmp)(const T* x, const T* y));
+  template <typename CompareFunction>
+  void StableSort(CompareFunction cmp, size_t start, size_t length);
+  template <typename CompareFunction>
+  void StableSort(CompareFunction cmp);
   void StableSort();
 
   INLINE(void Initialize(int capacity,