Reapply "Support for precise stepping in functions compiled before debugging was started (step 2)"

src/list-inl.h

 // Copyright 2006-2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 198 matching lines @@
 
 template <typename T>
 int SortedListBSearch(
     const List<T>& list, T elem, int (*cmp)(const T* x, const T* y)) {
   int low = 0;
   int high = list.length() - 1;
   while (low <= high) {
     int mid = (low + high) / 2;
     T mid_elem = list[mid];
 
-    if (mid_elem > elem) {
+    if (cmp(&mid_elem, &elem) > 0) {
       high = mid - 1;
       continue;
     }
-    if (mid_elem < elem) {
+    if (cmp(&mid_elem, &elem) < 0) {
       low = mid + 1;
       continue;
     }
     // Found the elememt.
     return mid;
   }
   return -1;
 }
 
 
 template <typename T>
 int SortedListBSearch(const List<T>& list, T elem) {
   return SortedListBSearch<T>(list, elem, PointerValueCompare<T>);
 }
 
 } }  // namespace v8::internal
 
 #endif  // V8_LIST_INL_H_