preprocessor: prevent usage of unsupported macros

[BrettMayson]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 69.4%. Comparing base (41d3ad5) to head (919ac26).
Report is 1 commits behind head on main.

Additional details and impacted files

Files with missing lines	Coverage Δ
libs/preprocessor/src/codes/pe25_exec.rs	100.0% <ø> (ø)
...preprocessor/src/codes/pe26_unsupported_builtin.rs	100.0% <100.0%> (ø)
libs/preprocessor/src/defines.rs	66.0% <100.0%> (+0.6%)	⬆️
libs/preprocessor/src/processor/mod.rs	89.4% <100.0%> (+0.1%)	⬆️