Set a def_id in ParamEnv only with -Z chalk

Author: scalexm

src/librustc/ty/mod.rs

@@ -3158,7 +3158,7 @@ fn param_env<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>,
     let unnormalized_env = ty::ParamEnv::new(
         tcx.intern_predicates(&predicates),
         traits::Reveal::UserFacing,
-        Some(def_id)
+        if tcx.sess.opts.debugging_opts.chalk { Some(def_id) } else { None }
     );
 
     let body_id = tcx.hir().as_local_node_id(def_id).map_or(DUMMY_NODE_ID, |id| {

src/test/ui/consts/const-size_of-cycle.stderr

@@ -10,7 +10,7 @@ note: ...which requires const-evaluating `Foo::bytes::{{constant}}`...
 LL |     intrinsics::size_of::<T>()
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
 note: ...which requires computing layout of `Foo`...
-note: ...which requires normalizing `ParamEnvAnd { param_env: ParamEnv { caller_bounds: [], reveal: All }, value: [u8; _] }`...
+note: ...which requires normalizing `ParamEnvAnd { param_env: ParamEnv { caller_bounds: [], reveal: All, def_id: None }, value: [u8; _] }`...
 note: ...which requires const-evaluating + checking `Foo::bytes::{{constant}}`...
   --> $DIR/const-size_of-cycle.rs:6:17
    |

src/test/ui/issues/issue-44415.stderr

@@ -10,7 +10,7 @@ note: ...which requires const-evaluating `Foo::bytes::{{constant}}`...
 LL |     bytes: [u8; unsafe { intrinsics::size_of::<Foo>() }],
    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 note: ...which requires computing layout of `Foo`...
-note: ...which requires normalizing `ParamEnvAnd { param_env: ParamEnv { caller_bounds: [], reveal: All }, value: [u8; _] }`...
+note: ...which requires normalizing `ParamEnvAnd { param_env: ParamEnv { caller_bounds: [], reveal: All, def_id: None }, value: [u8; _] }`...
 note: ...which requires const-evaluating + checking `Foo::bytes::{{constant}}`...
   --> $DIR/issue-44415.rs:6:17
    |