[clang] [libcxx] Reapply "[Clang] Implement resolution for CWG1835 (#92957, #98547)" (PR #100425)

[Matheus Izvekov via cfe-commits]

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@@ -698,13 +685,15 @@ bool Sema::BuildCXXNestedNameSpecifier(Scope *S, NestedNameSpecInfo &IdInfo,
   if (ErrorRecoveryLookup)
     return true;
 
+#if 0
   // If we didn't find anything during our lookup, try again with
   // ordinary name lookup, which can help us produce better error
   // messages.
   if (Found.empty()) {
     Found.clear(LookupOrdinaryName);
     LookupName(Found, S);
   }
+#endif
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mizvekov wrote:

Ditto

https://github.com/llvm/llvm-project/pull/100425