remove template c++11'ism in Heap.h

Source/platform/heap/Heap.h

Index: Source/platform/heap/Heap.h
diff --git a/Source/platform/heap/Heap.h b/Source/platform/heap/Heap.h
index af83b7c11ac4bdb74534cc6b3b538f6546208e7d..f4407e3e525a5ce9ee5314b8c1d611fc1452e259 100644
--- a/Source/platform/heap/Heap.h
+++ b/Source/platform/heap/Heap.h
@@ -1103,7 +1103,10 @@ public:
     static bool weakTableRegistered(const void*);
 #endif
 
-    template<typename T, typename HeapTraits = HeapTypeTrait<T> > static Address allocate(size_t);
+    template<typename T, typename HeapTraits> static Address allocate(size_t);
+    // FIXME: remove this once c++11 is allowed everywhere:
+    template<typename T> static Address allocate(size_t);
+
     template<typename T> static Address reallocate(void* previous, size_t);
 
     static void collectGarbage(ThreadState::StackState);
@@ -1574,6 +1577,12 @@ Address Heap::allocate(size_t size)
 }
 
 template<typename T>
+Address Heap::allocate(size_t size)
+{
+    return allocate<T, HeapTypeTrait<T> >(size);
+}
+
+template<typename T>
 Address Heap::reallocate(void* previous, size_t size)
 {
     if (!size) {