C                  72 src/cmd/5c/gc.h #define	C	((Case*)0)
C                  77 src/cmd/6c/gc.h #define	C	((Case*)0)
C                  78 src/cmd/8c/gc.h #define	C	((Case*)0)
C                  36 src/cmd/gc/swt.c #define	C	((Case*)nil)