Fix the last memory leak demonstrated by the test program in...

src/api.h

 // Copyright 2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 351 matching lines @@
     saved_contexts_.Initialize(0);
     spare_ = NULL;
     ignore_out_of_memory_ = false;
     call_depth_ = 0;
   }
 
   void Free() {
     ASSERT(blocks_.length() == 0);
     ASSERT(entered_contexts_.length() == 0);
     ASSERT(saved_contexts_.length() == 0);
+    blocks_.Free();
+    entered_contexts_.Free();
+    saved_contexts_.Free();
     if (spare_ != NULL) {
       DeleteArray(spare_);
       spare_ = NULL;
     }
     ASSERT(call_depth_ == 0);
   }
 
   List<internal::Object**> blocks_;
   // Used as a stack to keep track of entered contexts.
   List<Handle<Object> > entered_contexts_;
@@ skipping 76 matching lines @@
 #ifdef DEBUG
   v8::ImplementationUtilities::ZapHandleRange(
       spare_,
       &spare_[kHandleBlockSize]);
 #endif
 }
 
 } }  // namespace v8::internal
 
 #endif  // V8_API_H_