[Issue 21250] dirEntries on non-existant directory causes assert error

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=21250

Stefan Koch <uplink.coder at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |uplink.coder at gmail.com

--- Comment #1 from Stefan Koch <uplink.coder at gmail.com> ---
What happens here is a ctor dtor mismatch.

A temporary of a Refcounted is created inside a function where the file not
found exception is thrown.
The dtor is called on that temporary, which is basically a ref of the
refcounted since the refcounted has ref semantics on the count.
when the execption passes up a level the destructor of the actual refcouted
value is called. which tries to decrement the refcount again.

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