//! This API is completely unstable and subject to change.
#![doc(html_root_url = "https://doc.rust-lang.org/nightly/")]
-#![feature(arbitrary_self_types)]
-#![feature(box_patterns)]
-#![feature(box_syntax)]
-#![feature(core_intrinsics)]
#![feature(never_type)]
#![feature(nll)]
#![feature(in_band_lifetimes)]
#[macro_use]
extern crate rustc;
-use rustc::hir::def_id::{DefId, LOCAL_CRATE};
use rustc::ty::query::Providers;
use rustc::ty::TyCtxt;
+use rustc_hir::def_id::{DefId, LOCAL_CRATE};
use rustc_span::symbol::sym;
pub mod codegen_backend;