Added array type

src/types/Is.go

@@ -17,5 +17,17 @@ func Is(a Type, b Type) bool {
 		return true
 	}
 
+	aArray, aIsArray := a.(*Array)
+
+	if aIsArray && bIsPointer && (bPointer.To == nil || aArray.Of == bPointer.To) {
+		return true
+	}
+
+	bArray, bIsArray := b.(*Array)
+
+	if aIsArray && bIsArray && aArray.Of == bArray.Of {
+		return true
+	}
+
 	return false
 }