[clang] [Clang][Sema] Make UnresolvedLookupExprs in class scope explicit specializations instantiation dependent (PR #100392)

[Matheus Izvekov via cfe-commits]

https://github.com/mizvekov commented:

I agree that the issue with many parameters is pre-existing.

So you add a new flag to the UnresolvedLookupExpr which just forwards to the same flag in the base class OverloadExpr.

OverloadExpr already suffers, even worse, from this problem of too many parameters and too many bools.

So I don't mind doing this cleanup in another patch.

https://github.com/llvm/llvm-project/pull/100392