[Bug c++/52167] self-initialization should at least produce use-of-uninitialized warning

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52167
Bug 52167 depends on bug 48483, which changed state.

Bug 48483 Summary: Construct from yourself w/o warning
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48483

           What    |Removed                     |Added
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             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED