No longer put wasm mutexes in a box.

m-ou-se · m-ou-se · commit 4f1353e54f9c · 2020-10-02T09:47:08.000+02:00
These mutexes are just an AtomicUsize, so can be moved without
problems.
diff --git a/library/std/src/sys/wasm/mutex_atomics.rs b/library/std/src/sys/wasm/mutex_atomics.rs
@@ -8,7 +8,7 @@ pub struct Mutex {
     locked: AtomicUsize,
 }
 
-pub type MovableMutex = Box<Mutex>;
+pub type MovableMutex = Mutex;
 
 // Mutexes have a pretty simple implementation where they contain an `i32`
 // internally that is 0 when unlocked and 1 when the mutex is locked.

Original file line number	Diff line number	Diff line change
`@@ -8,7 +8,7 @@ pub struct Mutex {`
`8`	`8`	`locked: AtomicUsize,`
`9`	`9`	`}`
`10`	`10`
`11`		`-pub type MovableMutex = Box<Mutex>;`
	`11`	`+pub type MovableMutex = Mutex;`
`12`	`12`
`13`	`13`	// Mutexes have a pretty simple implementation where they contain an `i32`
`14`	`14`	`// internally that is 0 when unlocked and 1 when the mutex is locked.`