Refactor unwind from Option to a new enum

clippy_utils/src/qualify_min_const_fn.rs

@@ -318,7 +318,7 @@ fn check_terminator<'tcx>(
             from_hir_call: _,
             destination: _,
             target: _,
-            cleanup: _,
+            unwind: _,
             fn_span: _,
         } => {
             let fn_ty = func.ty(body, tcx);
@@ -361,7 +361,7 @@ fn check_terminator<'tcx>(
             expected: _,
             msg: _,
             target: _,
-            cleanup: _,
+            unwind: _,
         } => check_operand(tcx, cond, span, body),
 
         TerminatorKind::InlineAsm { .. } => Err((span, "cannot use inline assembly in const fn".into())),