Fix test.

Author: cjgillot

src/test/run-make-fulldeps/hotplug_codegen_backend/the_backend.rs

@@ -1,11 +1,12 @@
 #![feature(rustc_private)]
 
 extern crate rustc_codegen_ssa;
-extern crate rustc_errors;
-extern crate rustc_middle;
+extern crate rustc_crate;
 extern crate rustc_data_structures;
 extern crate rustc_driver;
+extern crate rustc_errors;
 extern crate rustc_hir;
+extern crate rustc_middle;
 extern crate rustc_session;
 extern crate rustc_span;
 extern crate rustc_symbol_mangling;
@@ -14,12 +15,12 @@ extern crate rustc_target;
 use rustc_codegen_ssa::back::linker::LinkerInfo;
 use rustc_codegen_ssa::traits::CodegenBackend;
 use rustc_codegen_ssa::{CodegenResults, CrateInfo};
+use rustc_crate::cstore::{EncodedMetadata, MetadataLoader, MetadataLoaderDyn};
 use rustc_data_structures::fx::FxHashMap;
 use rustc_data_structures::sync::MetadataRef;
 use rustc_errors::ErrorReported;
 use rustc_middle::dep_graph::DepGraph;
 use rustc_middle::dep_graph::{WorkProduct, WorkProductId};
-use rustc_middle::middle::cstore::{EncodedMetadata, MetadataLoader, MetadataLoaderDyn};
 use rustc_middle::ty::query::Providers;
 use rustc_middle::ty::TyCtxt;
 use rustc_session::config::OutputFilenames;

src/test/ui-fulldeps/hash-stable-is-unstable.rs

@@ -1,8 +1,8 @@
 // ignore-stage1
 
-extern crate rustc_data_structures;
+extern crate rustc_crate;
 //~^ use of unstable library feature 'rustc_private'
-extern crate rustc_middle;
+extern crate rustc_data_structures;
 //~^ use of unstable library feature 'rustc_private'
 extern crate rustc_macros;
 //~^ use of unstable library feature 'rustc_private'

src/test/ui-fulldeps/hash-stable-is-unstable.stderr

@@ -1,17 +1,17 @@
 error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
   --> $DIR/hash-stable-is-unstable.rs:3:1
    |
-LL | extern crate rustc_data_structures;
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+LL | extern crate rustc_crate;
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
 
 error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
   --> $DIR/hash-stable-is-unstable.rs:5:1
    |
-LL | extern crate rustc_middle;
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
+LL | extern crate rustc_data_structures;
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
    = help: add `#![feature(rustc_private)]` to the crate attributes to enable