use rustc::middle::codegen_fn_attrs::CodegenFnAttrFlags;
use rustc::mir::mono::{InstantiationMode, MonoItem};
-use rustc::session::config::SymbolManglingVersion;
use rustc::ty::query::Providers;
use rustc::ty::subst::SubstsRef;
use rustc::ty::{self, Instance, TyCtxt};
use rustc_hir::def_id::{CrateNum, LOCAL_CRATE};
use rustc_hir::Node;
+use rustc_session::config::SymbolManglingVersion;
use rustc_span::symbol::Symbol;