Add number string cache lookup for heap numbers to generatred code (on top of...

src/heap.cc

Index: src/heap.cc
===================================================================
--- src/heap.cc	(revision 4344)
+++ src/heap.cc	(working copy)
@@ -1808,11 +1808,13 @@
 }
 
 
-Object* Heap::NumberToString(Object* number) {
+Object* Heap::NumberToString(Object* number, bool check_number_string_cache) {
   Counters::number_to_string_runtime.Increment();
-  Object* cached = GetNumberStringCache(number);
-  if (cached != undefined_value()) {
-    return cached;
+  if (check_number_string_cache) {
+    Object* cached = GetNumberStringCache(number);
+    if (cached != undefined_value()) {
+      return cached;
+    }
   }
 
   char arr[100];