changed the way that functions are defined

tests/alloc.sl

@@ -2,22 +2,22 @@ import ../stdlib/stdlib.sl
 import ../stdlib/io.sl
 import ../stdlib/mem.sl
 
-: test-mem-alloc
+word test-mem-alloc
     4096 alloc dup 1337 swap !   # allocate 4096 bytes, store 1337 at start
     dup @ puti cr                # print value at start
     4096 free                    # free the memory
-;
+end
 
 struct: Point
     field x 8
     field y 8
 ;struct
 
-: main
+word main
     32 alloc           # allocate 32 bytes (enough for a Point struct)
     dup 111 swap Point.x!
     dup 222 swap Point.y!
     dup Point.x@ puti cr
     Point.y@ puti cr
     32 free            # free the memory
-;
+end