NoQ added a comment.

It seems that this check is more powerful because it works by knowing the 
dynamic type of the object. However, i still suspect that `-Wnon-virtual-dtor` 
(the other one, without `delete-`, that simply asks to make the destructor of 
polymorphic classes virtual) covers most practical cases. The only thing i see 
not covered by `-Wnon-virtual-dtor` but covered by this checker is the 
situation when the destructor is private. Reka, would you confirm our 
understanding?


https://reviews.llvm.org/D35796



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