llvm-project

b1faf8bc - [lldb/test] Register xros (visionOS) as a Darwin platform (#227142)

[lldb/test] Register xros (visionOS) as a Darwin platform (#227142) `lldbplatform.py` never registered `xros` at all: no enum value, no `__name_lookup` entry, and it was absent from `__darwin_embedded`/ `darwin_all`. As a result, `platformIsDarwin()` returned `False` for `xros`, and `finalize_build_dictionary`'s fallback branch, which indexes `platform_name_to_uname` by the raw platform name, would `KeyError` before any visionOS test could build. Add `xros` alongside the other embedded Darwin platforms so it's recognized the same way `ios`/`tvos`/`watchos`/`bridgeos` already are. Signed-off-by: Med Ismail Bennani <ismail@bennani.ma>