Move free_region_map to rustc::ty.

src/librustc/infer/opaque_types/mod.rs

@@ -1,9 +1,9 @@
 use crate::infer::error_reporting::{note_and_explain_free_region, note_and_explain_region};
-use crate::infer::outlives::free_region_map::FreeRegionRelations;
 use crate::infer::{self, InferCtxt, InferOk, TypeVariableOrigin, TypeVariableOriginKind};
 use crate::middle::region;
 use crate::traits::{self, PredicateObligation};
 use crate::ty::fold::{BottomUpFolder, TypeFoldable, TypeFolder, TypeVisitor};
+use crate::ty::free_region_map::FreeRegionRelations;
 use crate::ty::subst::{GenericArg, GenericArgKind, InternalSubsts, SubstsRef};
 use crate::ty::{self, GenericParamDefKind, Ty, TyCtxt};
 use errors::DiagnosticBuilder;

src/librustc/infer/outlives/env.rs

@@ -1,6 +1,6 @@
-use crate::infer::outlives::free_region_map::FreeRegionMap;
 use crate::infer::{GenericKind, InferCtxt};
 use crate::traits::query::outlives_bounds::{self, OutlivesBound};
+use crate::ty::free_region_map::FreeRegionMap;
 use crate::ty::{self, Ty};
 use rustc_data_structures::fx::FxHashMap;
 use rustc_hir as hir;

src/librustc/infer/outlives/mod.rs

@@ -1,6 +1,5 @@
 //! Various code related to computing outlives relations.
 
 pub mod env;
-pub mod free_region_map;
 pub mod obligations;
 pub mod verify;

src/librustc/middle/free_region.rs

@@ -3,8 +3,8 @@
 //! or explicit bounds. In that case, we track the bounds using the `TransitiveRelation` type,
 //! and use that to decide when one free region outlives another, and so forth.
 
-use crate::infer::outlives::free_region_map::{FreeRegionMap, FreeRegionRelations};
 use crate::middle::region;
+use crate::ty::free_region_map::{FreeRegionMap, FreeRegionRelations};
 use crate::ty::{self, Region, TyCtxt};
 use rustc_hir::def_id::DefId;
 

src/librustc/ty/context.rs

@@ -8,7 +8,6 @@ use crate::hir::map as hir_map;
 use crate::hir::map::DefPathHash;
 use crate::ich::{NodeIdHashingMode, StableHashingContext};
 use crate::infer::canonical::{Canonical, CanonicalVarInfo, CanonicalVarInfos};
-use crate::infer::outlives::free_region_map::FreeRegionMap;
 use crate::lint::{self, Lint};
 use crate::middle;
 use crate::middle::cstore::CrateStoreDyn;
@@ -26,6 +25,7 @@ use crate::session::config::{BorrowckMode, OutputFilenames};
 use crate::session::Session;
 use crate::traits;
 use crate::traits::{Clause, Clauses, Goal, GoalKind, Goals};
+use crate::ty::free_region_map::FreeRegionMap;
 use crate::ty::layout::{LayoutDetails, TargetDataLayout, VariantIdx};
 use crate::ty::query;
 use crate::ty::steal::Steal;

src/librustc/ty/mod.rs

@@ -103,6 +103,7 @@ pub mod error;
 pub mod fast_reject;
 pub mod flags;
 pub mod fold;
+pub mod free_region_map;
 pub mod inhabitedness;
 pub mod layout;
 pub mod normalize_erasing_regions;

src/librustc_mir/borrow_check/type_check/free_region_relations.rs

@@ -1,10 +1,10 @@
 use rustc::infer::canonical::QueryRegionConstraints;
-use rustc::infer::outlives::free_region_map::FreeRegionRelations;
 use rustc::infer::region_constraints::GenericKind;
 use rustc::infer::InferCtxt;
 use rustc::mir::ConstraintCategory;
 use rustc::traits::query::outlives_bounds::{self, OutlivesBound};
 use rustc::traits::query::type_op::{self, TypeOp};
+use rustc::ty::free_region_map::FreeRegionRelations;
 use rustc::ty::{self, RegionVid, Ty};
 use rustc_data_structures::transitive_relation::TransitiveRelation;
 use rustc_span::DUMMY_SP;