Rollup merge of #119397 - ShE3py:pat-range-paren-recovery, r=fmease

Recover parentheses in range patterns

Before:
```rs
match n {
    (0).. => (),
    _ => ()
}
```
```
error: expected one of `=>`, `if`, or `|`, found `..`
 --> src/lib.rs:3:12
  |
3 |         (0).. => (),
  |            ^^ expected one of `=>`, `if`, or `|`
  ```
 After:
```
error: range pattern bounds cannot have parentheses
 --> main.rs:3:5
  |
3 |     (0).. => (),
  |     ^ ^
  |
help: remove these parentheses
  |
3 -     (0).. => (),
3 +     0.. => (),
  |
```

This sets the groundwork for #118625, which will extend the recovery to expressions like `(0 + 1)..` where users may tend to add parentheses to avoid dealing with precedence.

---

```@rustbot``` label +A-parser +A-patterns +A-diagnostics

0 files changed, 0 insertions, 0 deletions