Ensure proper finalization of garbage-collected types.

Source/heap/HeapTest.cpp

Index: Source/heap/HeapTest.cpp
diff --git a/Source/heap/HeapTest.cpp b/Source/heap/HeapTest.cpp
index 3cc80872716b6ee844917b8283f8ad22b67591c2..7f1fc67af8f7095ea258ee7346595a76afc3ab40 100644
--- a/Source/heap/HeapTest.cpp
+++ b/Source/heap/HeapTest.cpp
@@ -1109,6 +1109,19 @@ private:
     bool m_isLast;
 };
 
+} // WebCore namespace
+
+namespace WTF {
+
+// We need the below vector trait specialization for the above HeapVectors to behave correctly wrt. memset, memcmp etc.
+template<> struct VectorTraits<WebCore::VectorObject> : public SimpleClassVectorTraits<WebCore::VectorObject> { };
+template<> struct VectorTraits<WebCore::VectorObjectInheritedTrace> : public SimpleClassVectorTraits<WebCore::VectorObjectInheritedTrace> { };
+template<> struct VectorTraits<WebCore::VectorObjectNoTrace> : public SimpleClassVectorTraits<WebCore::VectorObjectNoTrace> { };
+
+} // WTF namespace
+
+namespace WebCore {
+
 TEST(HeapTest, Transition)
 {
     {
@@ -2840,13 +2853,3 @@ TEST(HeapTest, HeapLinkedStack)
 }
 
 } // WebCore namespace
-
-namespace WTF {
-
-// We need the below vector trait specialization for the above HeapVectors to behave correctly wrt. memset, memcmp etc.
-template<> struct VectorTraits<WebCore::VectorObject> : public SimpleClassVectorTraits<WebCore::VectorObject> { };
-template<> struct VectorTraits<WebCore::VectorObjectInheritedTrace> : public SimpleClassVectorTraits<WebCore::VectorObjectInheritedTrace> { };
-template<> struct VectorTraits<WebCore::VectorObjectNoTrace> : public SimpleClassVectorTraits<WebCore::VectorObjectNoTrace> { };
-
-} // WTF namespace
-