MFC r345499:

MFC r345499:
Change all kernel C-type macros into static inline functions.

The current kernel C-type macros might obscurely hide the fact that
the input argument might be used multiple times.

This breaks code like:
isalpha(*ptr++)

Use static inline functions instead of macros to fix this.

Reviewed by:		kib @
Differential Revision:	https://reviews.freebsd.org/D19694
Sponsored by:		Mellanox Technologies

git-svn-id: svn://svn.freebsd.org/base/stable/10@345943 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f