wf: check foreign fn decls for well-formedness

This commit extends current well-formedness checking to apply to foreign
function declarations, re-using the existing machinery for regular
functions. In doing this, later parts of the compiler (such as the
`improper_ctypes` lint) can rely on being operations not failing as a
result of invalid code which would normally be caught earlier.

Signed-off-by: David Wood <david@davidtw.co>

0 files changed, 0 insertions, 0 deletions