Flush out potential leaks of Failure objects

src/objects.h

 // Copyright 2012 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 755 matching lines @@
   inline bool ToObject(Object** obj) {
     if (IsFailure()) return false;
     *obj = reinterpret_cast<Object*>(this);
     return true;
   }
   inline Failure* ToFailureUnchecked() {
     ASSERT(IsFailure());
     return reinterpret_cast<Failure*>(this);
   }
   inline Object* ToObjectUnchecked() {
-    ASSERT(!IsFailure());
+    // TODO(jkummerow): Turn this back into an ASSERT when we can be certain
+    // that it never fires in Release mode in the wild.
+    CHECK(!IsFailure());
     return reinterpret_cast<Object*>(this);
   }
   inline Object* ToObjectChecked() {
     CHECK(!IsFailure());
     return reinterpret_cast<Object*>(this);
   }
 
   template<typename T>
   inline bool To(T** obj) {
     if (IsFailure()) return false;
@@ skipping 8302 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_