### What it does
Checks for transmutes from a float to an integer.

### Why is this bad?
Transmutes are dangerous and error-prone, whereas `to_bits` is intuitive
and safe.

### Example
```
unsafe {
    let _: u32 = std::mem::transmute(1f32);
}

// should be:
let _: u32 = 1f32.to_bits();
```