Basic: fix compile warning

'operator|' : recursive on all control paths, function will cause runtime stack overflow

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@iki.fi>

tests/Basic/Basic.cpp

@@ -229,5 +229,5 @@ int test(basic& s)
 
 Bar::Item operator |(Bar::Item left, Bar::Item right)
 {
-    return left | right;
+    return left;
 }