error: `#[interrupt]` handlers must have signature `[unsafe] fn([<name>: CriticalSection]) [-> !]`
  --> tests/ui/interrupt_bad_cs_import.rs:18:1
   |
18 | fn TIM2(_cs: CritSec) {
   | ^^^^^^^^^^^^^^^^^^^^^

warning: unused import: `msp430::interrupt::CriticalSection as CritSec`
 --> tests/ui/interrupt_bad_cs_import.rs:3:5
  |
3 | use msp430::interrupt::CriticalSection as CritSec;
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  |
  = note: `#[warn(unused_imports)]` on by default