error: macros in pattern position are forbidden
 --> tests/ui/msg_invalid_pattern.rs:6:9
  |
6 |         foo!() => {}
  |         ^^^

error: literal patterns are forbidden
 --> tests/ui/msg_invalid_pattern.rs:7:9
  |
7 |         "liternal" => {}
  |         ^^^^^^^^^^

error: range patterns are forbidden
 --> tests/ui/msg_invalid_pattern.rs:8:9
  |
8 |         10..20 => {}
  |         ^^

error: parenthesized patterns are forbidden
 --> tests/ui/msg_invalid_pattern.rs:9:9
  |
9 |         (A | B) => {}
  |         ^^^^^^^

error: invalid request pattern
  --> tests/ui/msg_invalid_pattern.rs:10:9
   |
10 |         (SomeRequest, token, extra) => {}
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: token must be identifier
  --> tests/ui/msg_invalid_pattern.rs:11:9
   |
11 |         (SomeRequest, 20) => {}
   |         ^^^^^^^^^^^^^^^^^