Arthur O'Dwyer 418de7d5d8 Fix UB in one libcxx test, when deleting D through a pointer to B.
This undefined behavior was found by applying Lénárd Szolnoki's proposal
to disable implicit conversion of default_delete<D> to default_delete<B>.

The offending part of the test is circa line 243.

The wording that makes it undefined behavior is http://eel.is/c++draft/expr.delete#3 .

Differential Revision: https://reviews.llvm.org/D90536
2020-11-04 17:34:05 -05:00
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