[clang] [Clang] Bypass TAD during overload resolution if a perfect match exists (PR #136018)

[Erich Keane via cfe-commits]

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@@ -415,7 +415,7 @@ class Sema;
       // If we are not performing a reference binding, we can skip comparing
       // the types, which has a noticeable performance impact.
       if (!ReferenceBinding) {
-        assert(C.hasSameType(getFromType(), getToType(2)));
+        assert(First || C.hasSameUnqualifiedType(getFromType(), getToType(2)));
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erichkeane wrote:

Not sure I get this?  What is going on here? 

https://github.com/llvm/llvm-project/pull/136018