[clang] WIP: [clang] MicrosoftCXXABI: Fix exception copy constructor LUT after loading AST (PR #114075)

[Reid Kleckner via cfe-commits]

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+// REQUIRES: system-windows, target={{.*-windows-msvc}}
+// RUN: %clang_cc1 -x c++ -std=c++17 -fcxx-exceptions -fexceptions -triple=%ms_abi_triple -emit-pch -building-pch-with-obj -fmodules-codegen -o %t.pch %S/cxx-exception-copy-ctor-crash.h
+// RUN: %clang_cc1 -x c++ -std=c++17 -fcxx-exceptions -fexceptions -triple=%ms_abi_triple -include-pch %t.pch -emit-obj -building-pch-with-obj -fmodules-codegen -o %t.pch.obj
+// RUN: %clang_cc1 -x c++ -std=c++17 -fcxx-exceptions -fexceptions -triple=%ms_abi_triple -include-pch %t.pch -emit-obj -o %t.obj %s
+// RUN: lld-link -subsystem:console -out:%t.exe %t.pch.obj %t.obj libucrt.lib libvcruntime.lib libcmt.lib
+// RUN: %t.exe
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rnk wrote:

Execution tests are not allowed in the clang test suite. It would of course be ideal to have a place for these to live, but for now we just don't check them in.

https://github.com/llvm/llvm-project/pull/114075