547efad945
fix an ICE on unwrapping a None This very likely fixes #8166 though I wasn't able to meaningfully reduce a test case. This line is the only call to `unwrap` within that function, which was the one in the stack trace that triggered the ICE, so I think we'll be OK. `@hackmad` can you pull and build this branch and check if it indeed fixes your problem? --- changelog: Fixed ICE in [`unnecessary_cast`]