cleanup imports

compiler/rustc_middle/src/traits/mod.rs

@@ -991,9 +991,3 @@ pub enum DefiningAnchor {
     /// Used to catch type mismatch errors when handling opaque types.
     Error,
 }
-
-#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash, HashStable)]
-pub enum IsNormalizesToHack {
-    Yes,
-    No,
-}

compiler/rustc_middle/src/traits/solve.rs

@@ -228,3 +228,9 @@ impl<'tcx> TypeVisitable<TyCtxt<'tcx>> for PredefinedOpaques<'tcx> {
         self.opaque_types.visit_with(visitor)
     }
 }
+
+#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash, HashStable)]
+pub enum IsNormalizesToHack {
+    Yes,
+    No,
+}

compiler/rustc_middle/src/traits/solve/inspect.rs

@@ -1,5 +1,7 @@
-use super::{CanonicalInput, Certainty, Goal, NoSolution, QueryInput, QueryResult};
-use crate::{traits::IsNormalizesToHack, ty};
+use super::{
+    CanonicalInput, Certainty, Goal, IsNormalizesToHack, NoSolution, QueryInput, QueryResult,
+};
+use crate::ty;
 use format::ProofTreeFormatter;
 use std::fmt::{Debug, Write};
 
@@ -22,6 +24,7 @@ pub struct GoalEvaluation<'tcx> {
 
     pub result: QueryResult<'tcx>,
 }
+
 #[derive(Eq, PartialEq, Hash, HashStable)]
 pub enum GoalEvaluationKind<'tcx> {
     CacheHit(CacheHit),
@@ -65,6 +68,7 @@ pub struct GoalCandidate<'tcx> {
     pub candidates: Vec<GoalCandidate<'tcx>>,
     pub kind: CandidateKind<'tcx>,
 }
+
 #[derive(Eq, PartialEq, Debug, Hash, HashStable)]
 pub enum CandidateKind<'tcx> {
     /// Probe entered when normalizing the self ty during candidate assembly