[clang] [Clang] Do not treat Foo -> const Foo conversion sequences as perfect (PR #148613)

[Erich Keane via cfe-commits]

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@@ -448,11 +453,12 @@ class Sema;
 #endif
         return true;
       }
-      if (!C.hasSameType(getFromType(), getToType(2)))
-        return false;
       if (BindsToRvalue && IsLvalueReference)
         return false;
-      return true;
+      if (IsImplicitObjectArgumentQualificationConversion) {
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erichkeane wrote:

Nit: No curleys here.

https://github.com/llvm/llvm-project/pull/148613