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### What it does
Checks for expressions like `x >= 3 && x < 8` that could
be more readably expressed as `(3..8).contains(x)`.
### Why is this bad?
`contains` expresses the intent better and has less
failure modes (such as fencepost errors or using `||` instead of `&&`).
### Example
```
// given
let x = 6;
assert!(x >= 3 && x < 8);
```
Use instead:
```
assert!((3..8).contains(&x));
```
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