doctest_discover_tests fails with ASAN on Windows

[bifurcation]

Description

The doctest_discover_tests CMake function runs a test binary to discover tests and add them to CTest.

When the test binary is built with ASAN on Windows (/fsanitize=address), this invocation of the test binary fails. Based on the error code, it seems that the test binary is not able to find the ASAN libraries when launched in this way.

Steps to reproduce

I have made a small example case in this git repo:
https://github.com/bifurcation/doctest-fail

See, for example, this CI run:
https://github.com/bifurcation/doctest-fail/actions/runs/7201754266/job/19618531004

Extra information

• doctest version: v2.4.8 (latest in vcpkg) or v2.4.11 (latest)
• Operating System: Windows Server 2022
• Compiler+version: Microsoft Visual C++ 14.38.33130

That is, the problems shows up on a windows-latest GitHub actions runner

[vasil-pashov]

I've encountered similar issue with gtest and I'm 99% sure that the issue with doctest is the same. The problem (with gtest at least) is that it can't find ASAN's DLL. You can copy all required DLLs via custom command in CMake.