[clang] [clang] Handle templated operators with reversed arguments (PR #69595)

[Ilya Biryukov via cfe-commits]

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@@ -7688,7 +7688,7 @@ bool Sema::CheckNonDependentConversions(
     QualType ParamType = ParamTypes[I + Offset];
     if (!ParamType->isDependentType()) {
       unsigned ConvIdx = PO == OverloadCandidateParamOrder::Reversed
-                             ? 0
+                             ? Args.size() - 1 - (ThisConversions + I)
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ilya-biryukov wrote:

Is this a separate bug? Do you have a code example that manifests it independently?
I suggest to move this to a separate commit with its own test if it's not directly connected.

https://github.com/llvm/llvm-project/pull/69595