[clang] [Sema] Compare canonical conversion function (PR #154158)

[Vassil Vassilev via cfe-commits]

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@@ -0,0 +1,143 @@
+// RUN: rm -rf %t
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vgvassilev wrote:

I was suggesting to use the tests in either `overload-decl.cpp` or `conditional-expr.cpp` to get us into the `ICS1.isUserDefined()` branch and then play with the canonical decls to trigger the issue outside modules.

https://github.com/llvm/llvm-project/pull/154158