Point at statics and consts being mutable borrowed or written to:
```
error[E0594]: cannot assign to immutable static item `NUM`
--> $DIR/E0594.rs:4:5
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LL | static NUM: i32 = 18;
| --------------- this `static` cannot be written to
...
LL | NUM = 20;
| ^^^^^^^^ cannot assign
```
Point at the expression that couldn't be mutably borrowed from a pattern:
```
error[E0596]: cannot borrow data in a `&` reference as mutable
--> $DIR/mut-pattern-of-immutable-borrow.rs:19:14
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LL | match &arg.field {
| ---------- this cannot be borrowed as mutable
LL | Some(ref mut s) => s.push('a'),
| ^^^^^^^^^ cannot borrow as mutable
```
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47 lines
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error[E0594]: cannot assign to `self.0`, which is behind a `&` reference
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--> $DIR/suggest-ref-mut.rs:9:9
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LL | self.0 = 32;
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| ^^^^^^^^^^^ `self` is a `&` reference, so it cannot be written to
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help: consider changing this to be a mutable reference
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LL | fn zap(&mut self) {
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| +++
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error[E0594]: cannot assign to `*foo`, which is behind a `&` reference
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--> $DIR/suggest-ref-mut.rs:17:5
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LL | *foo = 32;
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| ^^^^^^^^^ `foo` is a `&` reference, so it cannot be written to
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help: consider changing this to be a mutable reference
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LL | let ref mut foo = 16;
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error[E0594]: cannot assign to `*bar`, which is behind a `&` reference
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--> $DIR/suggest-ref-mut.rs:21:9
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LL | *bar = 32;
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| ^^^^^^^^^ `bar` is a `&` reference, so it cannot be written to
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help: consider changing this to be a mutable reference
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LL | if let Some(ref mut bar) = Some(16) {
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error[E0594]: cannot assign to `*quo`, which is behind a `&` reference
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--> $DIR/suggest-ref-mut.rs:25:22
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LL | ref quo => { *quo = 32; },
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| ^^^^^^^^^ `quo` is a `&` reference, so it cannot be written to
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help: consider changing this to be a mutable reference
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LL | ref mut quo => { *quo = 32; },
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error: aborting due to 4 previous errors
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For more information about this error, try `rustc --explain E0594`.
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