Remove direct calls to number-related allocators from runtime.cc.

src/factory.cc

Index: src/factory.cc
diff --git a/src/factory.cc b/src/factory.cc
index b2c7f84541fccdab7ff2c1b15b277696c7929b8d..eba71e48a58f32a97ac0920f68c536a349592a3e 100644
--- a/src/factory.cc
+++ b/src/factory.cc
@@ -1620,9 +1620,12 @@ Handle<SharedFunctionInfo> Factory::NewSharedFunctionInfo(Handle<String> name) {
 }
 
 
-Handle<String> Factory::NumberToString(Handle<Object> number) {
+Handle<String> Factory::NumberToString(Handle<Object> number,
+                                       bool check_number_string_cache) {
   CALL_HEAP_FUNCTION(isolate(),
-                     isolate()->heap()->NumberToString(*number), String);
+                     isolate()->heap()->NumberToString(
+                         *number, check_number_string_cache),
+                     String);
 }