Move normalize_erasing_regions to rustc::ty.

Author: cjgillot

src/librustc/traits/query/mod.rs

@@ -13,7 +13,6 @@ pub mod dropck_outlives;
 pub mod evaluate_obligation;
 pub mod method_autoderef;
 pub mod normalize;
-pub mod normalize_erasing_regions;
 pub mod outlives_bounds;
 pub mod type_op;
 

src/librustc/ty/mod.rs

@@ -109,6 +109,7 @@ pub mod flags;
 pub mod fold;
 pub mod inhabitedness;
 pub mod layout;
+pub mod normalize_erasing_regions;
 pub mod outlives;
 pub mod print;
 pub mod query;