[clang] [clang] Skip dllexport of inherited constructors with unsatisfied constraints (PR #186497)

[Eli Friedman via cfe-commits]

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+// RUN: %clang_cc1 -triple x86_64-windows-msvc -fsyntax-only -fms-extensions -verify -std=c++20 %s
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efriedma-quic wrote:

This test is passing without your patch.  Did you mean to put something in which would make it fail?

https://github.com/llvm/llvm-project/pull/186497