Deduplicate GenericPredicates

compiler/rustc_smir/src/rustc_smir/mod.rs

@@ -108,10 +108,10 @@ fn generics_of(&mut self, def_id: stable_mir::DefId) -> stable_mir::ty::Generics
         generics.stable(self)
     }
 
-    fn predicates_of(&mut self, def_id: stable_mir::DefId) -> stable_mir::GenericPredicates {
+    fn predicates_of(&mut self, def_id: stable_mir::DefId) -> stable_mir::ty::GenericPredicates {
         let def_id = self[def_id];
         let ty::GenericPredicates { parent, predicates } = self.tcx.predicates_of(def_id);
-        stable_mir::GenericPredicates {
+        stable_mir::ty::GenericPredicates {
             parent: parent.map(|did| self.trait_def(did)),
             predicates: predicates
                 .iter()

compiler/rustc_smir/src/stable_mir/mod.rs

@@ -16,7 +16,7 @@
 use crate::rustc_smir::Tables;
 
 use self::ty::{
-    Generics, ImplDef, ImplTrait, PredicateKind, Span, TraitDecl, TraitDef, Ty, TyKind,
+    GenericPredicates, Generics, ImplDef, ImplTrait, Span, TraitDecl, TraitDef, Ty, TyKind,
 };
 
 pub mod mir;
@@ -41,12 +41,6 @@
 /// A list of impl trait decls.
 pub type ImplTraitDecls = Vec<ImplDef>;
 
-/// A list of predicates.
-pub struct GenericPredicates {
-    pub parent: Option<TraitDef>,
-    pub predicates: Vec<(PredicateKind, Span)>,
-}
-
 /// Holds information about a crate.
 #[derive(Clone, PartialEq, Eq, Debug)]
 pub struct Crate {

compiler/rustc_smir/src/stable_mir/ty.rs

@@ -499,8 +499,8 @@ pub struct GenericParamDef {
 }
 
 pub struct GenericPredicates {
-    pub parent: Option<DefId>,
-    pub predicates: Vec<PredicateKind>,
+    pub parent: Option<TraitDef>,
+    pub predicates: Vec<(PredicateKind, Span)>,
 }
 
 #[derive(Clone, Debug)]