Auto merge of #21521 - defuz:interval-with-path, r=pnkfelix

Fixing #21475. Right now this code can not be parsed:

```rust
use m::{START, END};

fn main() {
    match 42u32 {
        m::START...m::END => {}, // error: expected one of `::`, `=>`, or `|`, found `...`
        _  => {},
    }
}

mod m {
  pub const START: u32 = 4;
  pub const END:   u32 = 14;
}
```

I fixed the parser and added test for this case, but now there are still problems with mixing literals and paths in interval:

```rust
    match 42u32 {
        0u32...m::END => {},       // mismatched types in range [E0031]
        m::START...59u32 => {},    // mismatched types in range [E0031]
        _  => {},
    }
}
```

I'll try fix this problem and need review.

0 files changed, 0 insertions, 0 deletions