[Bug c++/81716] Bogus -Wlto warning with forward-declared pointers

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81716
Bug 81716 depends on bug 83954, which changed state.

Bug 83954 Summary: [6/7 Regression] LTO: Bogus -Wlto-type-mismatch warning for array of pointer to incomplete type
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83954

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