</p>

<pre>
// A Mutex is a data type with two methods, Lock and Unlock.
type Mutex struct         { /* Mutex fields */ }
func (m *Mutex) Lock()    { /* Lock implementation */ }
func (m *Mutex) Unlock()  { /* Unlock implementation */ }

// NewMutex has the same composition as Mutex but its method set is empty.
type NewMutex Mutex

- [`KT-59057`](https://youtrack.jetbrains.com/issue/KT-59057) Revise muted tests for native backend
- [`KT-57377`](https://youtrack.jetbrains.com/issue/KT-57377) K2/MPP: internal declarations from common module are inivisible for intermediate modules during metadata compilation