0.3.0: it appears stat on a directory has no size on windows
@@ -10,6 +10,6 @@ System.print(stat.linkCount >= 1) // expect: true
System.print(stat.user is Num) // expect: true
System.print(stat.group is Num) // expect: true
System.print(stat.specialDevice) // expect: 0
-System.print(stat.size > 0) // expect: true
+System.print(stat.size is Num) // expect: true
System.print(stat.blockSize is Num) // expect: true
System.print(stat.blockCount is Num) // expect: true
