[Lldb-commits] [lldb] [lldb][windows] print an error if python.dll is not in the DLL search path (PR #164893)

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Nerixyz wrote:

> I could not find a variable which points to `python3.dll`.

According to the documentation of [`FindPython3.cmake`](https://cmake.org/cmake/help/latest/module/FindPython3.html#artifacts-specification), this should be in `Python3_SABI_LIBRARY`.

https://github.com/llvm/llvm-project/pull/164893