Explicit type qualification when calling destructor.

include/tvm/runtime/memory.h

@@ -114,7 +114,7 @@ class SimpleObjAllocator :
       // because objptr and tptr may not be the same
       // depending on how sub-class allocates the space.
       T* tptr = static_cast<T*>(objptr);
-      tptr->~T();
+      tptr->T::~T();
       delete reinterpret_cast<StorageType*>(tptr);
     }
   };