Export AllocError as well as Allocator.

Author: cfallin

src/raw/alloc.rs

@@ -3,7 +3,7 @@ pub use self::inner::*;
 #[cfg(feature = "nightly")]
 mod inner {
     use crate::alloc::alloc::Layout;
-    pub use crate::alloc::alloc::{Allocator, Global};
+    pub use crate::alloc::alloc::{AllocError, Allocator, Global};
     use core::ptr::NonNull;
 
     #[allow(clippy::map_err_ignore)]

src/raw/mod.rs

@@ -32,7 +32,7 @@ cfg_if! {
 }
 
 mod alloc;
-pub use self::alloc::{do_alloc, Allocator, Global};
+pub use self::alloc::{do_alloc, AllocError, Allocator, Global};
 
 mod bitmask;