Unreviewed speculative 32-bit buildfix after r166837.

* heap/Heap.cpp:
(JSC::Heap::updateObjectCounts):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@166857 268f45cc-cd09-0410-ab3c-d52691b4dbfc
diff --git a/Source/JavaScriptCore/heap/Heap.cpp b/Source/JavaScriptCore/heap/Heap.cpp
index fa4a6b5c..16878ff 100644
--- a/Source/JavaScriptCore/heap/Heap.cpp
+++ b/Source/JavaScriptCore/heap/Heap.cpp
@@ -774,7 +774,7 @@
 #if ENABLE(PARALLEL_GC)
         visitCount += m_sharedData.childVisitCount();
 #endif
-        dataLogF("\nNumber of live Objects after GC %lu, took %.6f secs\n", visitCount, WTF::monotonicallyIncreasingTime() - gcStartTime);
+        dataLogF("\nNumber of live Objects after GC %lu, took %.6f secs\n", static_cast<unsigned long>(visitCount), WTF::monotonicallyIncreasingTime() - gcStartTime);
     }
 
     if (m_operationInProgress == EdenCollection) {