Make super combine into fns

Author: compiler-errors

compiler/rustc_borrowck/src/type_check/relate_tys.rs

@@ -11,7 +11,7 @@ use rustc_middle::span_bug;
 use rustc_middle::traits::ObligationCause;
 use rustc_middle::traits::query::NoSolution;
 use rustc_middle::ty::fold::FnMutDelegate;
-use rustc_middle::ty::relate::combine::InferCtxtCombineExt;
+use rustc_middle::ty::relate::combine::{super_combine_consts, super_combine_tys};
 use rustc_middle::ty::{self, Ty, TyCtxt, TypeVisitableExt};
 use rustc_span::symbol::sym;
 use rustc_span::{Span, Symbol};
@@ -363,7 +363,7 @@ impl<'b, 'tcx> TypeRelation<TyCtxt<'tcx>> for NllTypeRelating<'_, 'b, 'tcx> {
                 &ty::Alias(ty::Opaque, ty::AliasTy { def_id: a_def_id, .. }),
                 &ty::Alias(ty::Opaque, ty::AliasTy { def_id: b_def_id, .. }),
             ) if a_def_id == b_def_id || infcx.next_trait_solver() => {
-                infcx.super_combine_tys(self, a, b).map(|_| ()).or_else(|err| {
+                super_combine_tys(&infcx.infcx, self, a, b).map(|_| ()).or_else(|err| {
                     // This behavior is only there for the old solver, the new solver
                     // shouldn't ever fail. Instead, it unconditionally emits an
                     // alias-relate goal.
@@ -386,7 +386,7 @@ impl<'b, 'tcx> TypeRelation<TyCtxt<'tcx>> for NllTypeRelating<'_, 'b, 'tcx> {
                 debug!(?a, ?b, ?self.ambient_variance);
 
                 // Will also handle unification of `IntVar` and `FloatVar`.
-                self.type_checker.infcx.super_combine_tys(self, a, b)?;
+                super_combine_tys(&self.type_checker.infcx.infcx, self, a, b)?;
             }
         }
 
@@ -423,7 +423,7 @@ impl<'b, 'tcx> TypeRelation<TyCtxt<'tcx>> for NllTypeRelating<'_, 'b, 'tcx> {
         assert!(!a.has_non_region_infer(), "unexpected inference var {:?}", a);
         assert!(!b.has_non_region_infer(), "unexpected inference var {:?}", b);
 
-        self.type_checker.infcx.super_combine_consts(self, a, b)
+        super_combine_consts(&self.type_checker.infcx.infcx, self, a, b)
     }
 
     #[instrument(skip(self), level = "trace")]

compiler/rustc_infer/src/infer/relate/lattice.rs

@@ -18,7 +18,7 @@
 //! [lattices]: https://en.wikipedia.org/wiki/Lattice_(order)
 
 use rustc_middle::traits::solve::Goal;
-use rustc_middle::ty::relate::combine::InferCtxtCombineExt;
+use rustc_middle::ty::relate::combine::{super_combine_consts, super_combine_tys};
 use rustc_middle::ty::relate::{Relate, RelateResult, TypeRelation};
 use rustc_middle::ty::{self, Ty, TyCtxt, TyVar, TypeVisitableExt};
 use rustc_span::Span;
@@ -149,7 +149,7 @@ impl<'tcx> TypeRelation<TyCtxt<'tcx>> for LatticeOp<'_, 'tcx> {
             (
                 &ty::Alias(ty::Opaque, ty::AliasTy { def_id: a_def_id, .. }),
                 &ty::Alias(ty::Opaque, ty::AliasTy { def_id: b_def_id, .. }),
-            ) if a_def_id == b_def_id => infcx.super_combine_tys(self, a, b),
+            ) if a_def_id == b_def_id => super_combine_tys(infcx, self, a, b),
 
             (&ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. }), _)
             | (_, &ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. }))
@@ -164,7 +164,7 @@ impl<'tcx> TypeRelation<TyCtxt<'tcx>> for LatticeOp<'_, 'tcx> {
                 Ok(a)
             }
 
-            _ => infcx.super_combine_tys(self, a, b),
+            _ => super_combine_tys(infcx, self, a, b),
         }
     }
 
@@ -192,7 +192,7 @@ impl<'tcx> TypeRelation<TyCtxt<'tcx>> for LatticeOp<'_, 'tcx> {
         a: ty::Const<'tcx>,
         b: ty::Const<'tcx>,
     ) -> RelateResult<'tcx, ty::Const<'tcx>> {
-        self.infcx.super_combine_consts(self, a, b)
+        super_combine_consts(self.infcx, self, a, b)
     }
 
     fn binders<T>(

compiler/rustc_infer/src/infer/relate/type_relating.rs

@@ -1,5 +1,5 @@
 use rustc_middle::traits::solve::Goal;
-use rustc_middle::ty::relate::combine::InferCtxtCombineExt;
+use rustc_middle::ty::relate::combine::{super_combine_consts, super_combine_tys};
 use rustc_middle::ty::relate::{
     Relate, RelateResult, TypeRelation, relate_args_invariantly, relate_args_with_variances,
 };
@@ -186,7 +186,7 @@ impl<'tcx> TypeRelation<TyCtxt<'tcx>> for TypeRelating<'_, 'tcx> {
                 &ty::Alias(ty::Opaque, ty::AliasTy { def_id: a_def_id, .. }),
                 &ty::Alias(ty::Opaque, ty::AliasTy { def_id: b_def_id, .. }),
             ) if a_def_id == b_def_id => {
-                infcx.super_combine_tys(self, a, b)?;
+                super_combine_tys(infcx, self, a, b)?;
             }
 
             (&ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. }), _)
@@ -202,7 +202,7 @@ impl<'tcx> TypeRelation<TyCtxt<'tcx>> for TypeRelating<'_, 'tcx> {
             }
 
             _ => {
-                infcx.super_combine_tys(self, a, b)?;
+                super_combine_tys(infcx, self, a, b)?;
             }
         }
 
@@ -257,7 +257,7 @@ impl<'tcx> TypeRelation<TyCtxt<'tcx>> for TypeRelating<'_, 'tcx> {
         a: ty::Const<'tcx>,
         b: ty::Const<'tcx>,
     ) -> RelateResult<'tcx, ty::Const<'tcx>> {
-        self.infcx.super_combine_consts(self, a, b)
+        super_combine_consts(self.infcx, self, a, b)
     }
 
     fn binders<T>(