Fix build issue on Mac.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1703 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/heap.cc

@@ -374,10 +374,9 @@ void Heap::PerformScavenge() {
 }
 
 
-static void VerifySymbolTable() {
 #ifdef DEBUG
-  // Helper class for verifying the symbol table.
-  class SymbolTableVerifier : public ObjectVisitor {
+// Helper class for verifying the symbol table.
+class SymbolTableVerifier : public ObjectVisitor {
  public:
   SymbolTableVerifier() { }
   void VisitPointers(Object** start, Object** end) {
@@ -389,8 +388,12 @@ static void VerifySymbolTable() {
       }
     }
   }
-  };
+};
+#endif  // DEBUG
 
+
+static void VerifySymbolTable() {
+#ifdef DEBUG
   SymbolTableVerifier verifier;
   SymbolTable* symbol_table = SymbolTable::cast(Heap::symbol_table());
   symbol_table->IterateElements(&verifier);