c-typeck.c, [...]: Use "built-in" and "bit-field" spellings in messages.

c-typeck.c, [...]: Use "built-in" and "bit-field" spellings in messages.

	* c-typeck.c, config/i386/i386.h, config/mcore/mcore.h,
	config/ns32k/ns32k.h, config/rs6000/sysv4.h, fold-const.c,
	toplev.c, cppinit.c, cppmacro.c, gcc.c: Use "built-in" and
	"bit-field" spellings in messages.
	* po/gcc.pot: Regenerate.

ch:
	* expr.c: Use "built-in" spelling in messages.

From-SVN: r48048