Add #[inline] to RawWaker::new

Author: tmiasko

library/core/src/task/wake.rs

@@ -37,6 +37,7 @@ impl RawWaker {
     /// The `vtable` customizes the behavior of a `Waker` which gets created
     /// from a `RawWaker`. For each operation on the `Waker`, the associated
     /// function in the `vtable` of the underlying `RawWaker` will be called.
+    #[inline]
     #[rustc_promotable]
     #[stable(feature = "futures_api", since = "1.36.0")]
     #[rustc_const_stable(feature = "futures_api", since = "1.36.0")]