Merge unboxed trait object error suggestion into regular dyn incompat error #142458
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Another hir-walker removed from the well-formed queries. This error was always a duplicate of another, but it was able to provide more information because it could invoke
is_dyn_compatiblewithout worrying about cycle errors. That's also the reason we can't put the error directly into hir_ty_lowering when lowering adyn Traitwithin an associated item signature. So instead I packed it into the error handling of wf obligation checking.