let _ = () in Lib.x;;
(**
0 CONSTINT 42
2 PUSHACC0
3 MAKEBLOCK1 0
5 POP 1
7 SETGLOBAL Lib
9 CONST0
10 PUSHGETGLOBALFIELD Lib, 0
13 POP 1
15 ATOM0
16 SETGLOBAL T051-pushgetglobalfield
18 STOP
**)