[flang] Extension: associating polymorphic pointer/allocatable actual… (#93211) … with monomorphic dummy The relevant standard requires (F'2023 15.5.2.6 p2) that when a pointer or allocatable actual argument is associated with an identically-attributed dummy argument, either both are polymorphic or neither is. We already relax this requirement in the case of an INTENT(IN) dummy argument, since a change of type cannot occur. Further, like other compilers do, we can also relax this requirement in the case of a limited polymorphic actual argument being associated with a monomorphic dummy, as our implementation always passes a reference to the actual descriptor, where any change of type that occurs during the call due to reallocation will be properly recorded.
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