Add unit tests to check Derive macro output for expected error messages,
or for expected correct codegen output.
Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Link: https://lore.kernel.org/r/20250704-rust_add_derive_macro_unit_tests-v1-2-ebd47fa7f78f@linaro.org
[Remove usage of MacroError. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
a721d9a9f3