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### What it does
Checks for usage of `*&` and `*&mut` in expressions.
### Why is this bad?
Immediately dereferencing a reference is no-op and
makes the code less clear.
### Known problems
Multiple dereference/addrof pairs are not handled so
the suggested fix for `x = **&&y` is `x = *&y`, which is still incorrect.
### Example
```
let a = f(*&mut b);
let c = *&d;
```
Use instead:
```
let a = f(b);
let c = d;
```
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