allocator: Vec::into_boxed_slice does not return our Box #6193
Description
Vec::into_boxed_slice returns an allocator_api2::stable::boxed::Box, which is not assignable to oxc_allocator::boxed::Box
Add this test case to vec.rs to reproduce.
#[test]
fn test_vec_to_boxed_slice() {
// file: oxc_allocator/src/vec.rs
use crate::boxed::Box;
let allocator = Allocator::default();
let v = Vec::from_iter_in([1,2,3], &allocator);
let b: Box<[i32]> = v.into_boxed_slice(); // <- compiler error
assert_eq!(&*b, &[1, 2, 3]);
}