[Issue 19430] wrong code for `this =`, corrupted memory issue

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=19430

--- Comment #11 from Илья Ярошенко <ilyayaroshenko at gmail.com> ---
I am starting to dig deeper since I have more code that uses RC with D.
The first one issue is https://issues.dlang.org/show_bug.cgi?id=19774
The second one related to generic `=` operator, still needs to be reduced.

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