Auto merge of #11580 - y21:issue11579, r=Jarcho

[`manual_let_else`]: only omit block if span is from same ctxt

Fixes #11579.

The lint already had logic for omitting a block in `else` if a block is already present, however this didn't handle the case where the block is from a different expansion/syntax context. E.g.
```rs
macro_rules! panic_in_block {
  () => { { panic!() } }
}

let _ = match Some(1) {
  Some(v) => v,
  _ => panic_in_block!()
};
```
It would see this in its expanded form as `_ => { panic!() }` and think it doesn't have to include a block in its suggestion because it is already there, however that's not true if it's from a different expansion like in this case.

changelog: [`manual_let_else`]: only omit block in suggestion if the block is from the same expansion

0 files changed, 0 insertions, 0 deletions