Summary

• add a collected tests/kernel_selftest_equivalent suite for kernel selftest-inspired roadmap cases
• add strict xfail equivalents for ArrayMap lookup/update and ringbuf reserve/submit/discard
• add an ArrayMap public API stub plus explicit compiler-side unsupported failure so tests fail for the intended missing feature
• make vmlinux availability probing tolerate broken generated vmlinux.py files for non-vmlinux tests

Tests

• /home/mallya/Desktop/pybpf-dev/.venv/bin/python -m pytest tests/test_ir_generation.py -q -k kernel_selftest_equivalent -rx
• /home/mallya/Desktop/pybpf-dev/.venv/bin/python -m pytest tests/test_llc_compilation.py -q -k kernel_selftest_equivalent -rx
• git diff --check

Notes

• Full non-verifier suite was also run and still has existing unrelated failures: 6 failed, 101 passed, 30 skipped, 9 xfailed.