Do not reveal opaques in the param-env, we got lazy norm instead

Author: compiler-errors

compiler/rustc_middle/src/ty/mod.rs

@@ -1076,11 +1076,6 @@ impl<'tcx> ParamEnv<'tcx> {
         ty::ParamEnv { packed: CopyTaggedPtr::new(caller_bounds, ParamTag { reveal }) }
     }
 
-    pub fn with_user_facing(mut self) -> Self {
-        self.packed.set_tag(ParamTag { reveal: Reveal::UserFacing, ..self.packed.tag() });
-        self
-    }
-
     /// Returns a new parameter environment with the same clauses, but
     /// which "reveals" the true results of projections in all cases
     /// (even for associated types that are specializable). This is
@@ -1095,6 +1090,12 @@ impl<'tcx> ParamEnv<'tcx> {
             return self;
         }
 
+        // No need to reveal opaques with the new solver enabled,
+        // since we have lazy norm.
+        if tcx.next_trait_solver_globally() {
+            return ParamEnv::new(self.caller_bounds(), Reveal::All);
+        }
+
         ParamEnv::new(tcx.reveal_opaque_types_in_bounds(self.caller_bounds()), Reveal::All)
     }
 

compiler/rustc_middle/src/ty/util.rs

@@ -1751,6 +1751,7 @@ pub fn reveal_opaque_types_in_bounds<'tcx>(
     tcx: TyCtxt<'tcx>,
     val: ty::Clauses<'tcx>,
 ) -> ty::Clauses<'tcx> {
+    assert!(!tcx.next_trait_solver_globally());
     let mut visitor = OpaqueTypeExpander {
         seen_opaque_tys: FxHashSet::default(),
         expanded_cache: FxHashMap::default(),