error: expected identifier, found keyword `if`
  --> $DIR/recover-parens-around-match-arm-head.rs:4:12
   |
LL |         (0 if true) => {
   |            ^^ expected identifier, found keyword

error: expected one of `)`, `,`, `...`, `..=`, `..`, or `|`, found keyword `if`
  --> $DIR/recover-parens-around-match-arm-head.rs:4:12
   |
LL |         (0 if true) => {
   |           -^^ expected one of `)`, `,`, `...`, `..=`, `..`, or `|`
   |           |
   |           help: missing `,`

error: expected one of `)`, `,`, `@`, or `|`, found keyword `true`
  --> $DIR/recover-parens-around-match-arm-head.rs:4:15
   |
LL |         (0 if true) => {
   |              -^^^^ expected one of `)`, `,`, `@`, or `|`
   |              |
   |              help: missing `,`

error[E0308]: mismatched types
  --> $DIR/recover-parens-around-match-arm-head.rs:4:9
   |
LL |     let x = match val {
   |                   --- this expression has type `{integer}`
LL |         (0 if true) => {
   |         ^^^^^^^^^^^ expected integer, found `(_, _, _)`
   |
   = note: expected type `{integer}`
             found tuple `(_, _, _)`

error[E0308]: mismatched types
  --> $DIR/recover-parens-around-match-arm-head.rs:13:19
   |
LL |     let _y: u32 = x;
   |             ---   ^ expected `u32`, found `u8`
   |             |
   |             expected due to this
   |
help: you can convert a `u8` to a `u32`
   |
LL |     let _y: u32 = x.into();
   |                    +++++++

error: aborting due to 5 previous errors

For more information about this error, try `rustc --explain E0308`.