error: Name `j` forms or references an illegal self-referential cycle (1/10).
  --> tests/compile-fail/surface_forwardref_chain_single.rs:16:9
   |
16 |         j -> null();
   |         ^

error: Name `a` forms or references an illegal self-referential cycle (2/10).
  --> tests/compile-fail/surface_forwardref_chain_single.rs:14:13
   |
14 |         j = a;
   |             ^

error: Name `b` forms or references an illegal self-referential cycle (3/10).
 --> tests/compile-fail/surface_forwardref_chain_single.rs:5:13
  |
5 |         a = b;
  |             ^

error: Name `c` forms or references an illegal self-referential cycle (4/10).
 --> tests/compile-fail/surface_forwardref_chain_single.rs:6:13
  |
6 |         b = c;
  |             ^

error: Name `d` forms or references an illegal self-referential cycle (5/10).
 --> tests/compile-fail/surface_forwardref_chain_single.rs:7:13
  |
7 |         c = d;
  |             ^

error: Name `e` forms or references an illegal self-referential cycle (6/10).
 --> tests/compile-fail/surface_forwardref_chain_single.rs:8:13
  |
8 |         d = e;
  |             ^

error: Name `f` forms or references an illegal self-referential cycle (7/10).
 --> tests/compile-fail/surface_forwardref_chain_single.rs:9:13
  |
9 |         e = f;
  |             ^

error: Name `g` forms or references an illegal self-referential cycle (8/10).
  --> tests/compile-fail/surface_forwardref_chain_single.rs:10:13
   |
10 |         f = g;
   |             ^

error: Name `h` forms or references an illegal self-referential cycle (9/10).
  --> tests/compile-fail/surface_forwardref_chain_single.rs:11:13
   |
11 |         g = h;
   |             ^

error: Name `i` forms or references an illegal self-referential cycle (10/10).
  --> tests/compile-fail/surface_forwardref_chain_single.rs:12:13
   |
12 |         h = i;
   |             ^