error[E06002]: use of unassigned variable
  ┌─ tests/move_check/translated_ir_tests/move/commands/if_assigns_no_else.move:5:13
  │
3 │     let x;
  │         - The variable 'x' might not have a value. The variable must be assigned a value before being used.
4 │     if (true) x = 42;
5 │     assert!(x == 42, 42);
  │             ^ Invalid usage of unassigned variable 'x'