[lldb] resolving optional crashes lldb(-dap) (clang/windows/msvc)

[BjornSAIM]

When debugging from vscode/cursor using lldb-dap. the debugger will crash when trying to resolve an std::optional. switching the std::optional out with an different implementation (like Optional26 by beman) fixes the problem.

link to a minimal repro: https://github.com/BjornSAIM/lldb-optional-crash
just set a breakpoint anywhere after the assignment to the optional.

clang/lldb/... are all on 19.1.1
Visual Studio 2022 version 17.9

[llvmbot]

@llvm/issue-subscribers-lldb

Author: None (BjornSAIM)

When debugging from vscode/cursor using lldb-dap. the debugger will crash when trying to resolve an std::optional. switching the std::optional out with an different implementation (like Optional26 by beman) fixes the problem.

link to a minimal repro: https://github.com/BjornSAIM/lldb-optional-crash
just set a breakpoint anywhere after the assignment to the optional.

clang/lldb/... are all on 19.1.1
Visual Studio 2022 version 17.9