remove old types and

time/time_mac.v

@@ -9,14 +9,14 @@ module time
 //#include <mach/mach_time.h>
 
 // in ms
-fn ticks() double {
+fn ticks() f64 {
 	panic('not implemented') 
 /* 
 	t := i64(C.mach_absolute_time())
 	# Nanoseconds elapsedNano = AbsoluteToNanoseconds( *(AbsoluteTime *) &t );
 	# return (double)(* (uint64_t *) &elapsedNano) / 1000000;
 */ 
-	return double(0)
+	return f64(0)
 }
 
 fn sleep(seconds int) {