[clang] [clang] Handle constructor closures with consteval default args (PR #203554)

[Hans Wennborg via cfe-commits]

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@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -triple i686-windows-msvc -emit-llvm -std=c++14 \
+// RUN: %clang_cc1 -triple i686-windows-msvc -emit-llvm -std=c++20 \
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zmodem wrote:

Adding clang/test/SemaCXX/ms-ctor-closure.cpp

https://github.com/llvm/llvm-project/pull/203554