[clang] [Clang] Fix name lookup of conversion operators (PR #142945)

[Shafik Yaghmour via cfe-commits]

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@@ -3673,6 +3678,8 @@ void Parser::ParseDeclarationSpecifiers(
           *Next.getIdentifierInfo(), Next.getLocation(), getCurScope(), &SS,
           false, false, nullptr,
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shafik wrote:

Also applies in some other places as well.

https://github.com/llvm/llvm-project/pull/142945