* Update studio root-resilience tests for the inference-backend refactor
#6490 moved the studio_root() probe and its (ImportError, OSError, ValueError)
handler out of _find_llama_server_binary / _kill_orphaned_servers into the shared
_resolved_studio_root_and_is_legacy() classifier, and switched the WSL ROCm lib-dir
ordering to lib_dirs.extend(_wsl_system_rocm_lib_dirs()). These source-introspection
tests still asserted the old inline structure, so they fail on main (surfaced by any
PR that trips the Repo tests path filter, e.g. the Windows installer PRs). Point them
at the new structure and assert the defense in its new home; no runtime change.
* Address review: qualify the classifier call and harden helper-body extraction
Assert the callers invoke LlamaCppBackend._resolved_studio_root_and_is_legacy()
through the class namespace (more precise than the bare name), and end the
helper-source slice at the next sibling def/decorator at the same indent instead
of the literal @staticmethod string, so a future docstring that mentions a
decorator can't truncate the helper mid-body and break exec().
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Co-authored-by: danielhanchen <michaelhan2050@gmail.com>
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