[clang] [Clang] Never consider conversion from single-element braced-init-list perfect (PR #138307)

[Younan Zhang via cfe-commits]

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@@ -412,6 +419,12 @@ class Sema;
     bool isPerfect(const ASTContext &C) const {
       if (!isIdentityConversion())
         return false;
+
+      // We might prefer a std::initializer constructor,
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zyn0217 wrote:

`std::initializer_list`

https://github.com/llvm/llvm-project/pull/138307