bug 265339: nsCParserStartNode::~nsCParserStartNode() asserts unnecessarily. r+sr=peterv

parser/htmlparser/src/nsParserNode.h

@@ -296,7 +296,8 @@ public:
 
     virtual ~nsCParserStartNode() 
     {
-      NS_ASSERTION(0 != mTokenAllocator, "Error: no token allocator");
+      NS_ASSERTION(mTokenAllocator || mAttributes.GetSize() == 0,
+                   "Error: no token allocator");
       CToken* theAttrToken = 0;
       while ((theAttrToken = NS_STATIC_CAST(CToken*, mAttributes.Pop()))) {
         IF_FREE(theAttrToken, mTokenAllocator);