Add check for ui_testing via promoting parameters from ParseSess to Session

compiler/rustc_hir_analysis/src/check/check.rs

@@ -996,7 +996,7 @@ pub(super) fn check_transparent<'tcx>(tcx: TyCtxt<'tcx>, adt: ty::AdtDef<'tcx>)
 
     if adt.is_union() && !tcx.features().transparent_unions {
         feature_err(
-            &tcx.sess.parse_sess,
+            &tcx.sess,
             sym::transparent_unions,
             tcx.def_span(adt.did()),
             "transparent unions are unstable",
@@ -1128,7 +1128,7 @@ fn check_enum(tcx: TyCtxt<'_>, def_id: LocalDefId) {
     if repr_type_ty == tcx.types.i128 || repr_type_ty == tcx.types.u128 {
         if !tcx.features().repr128 {
             feature_err(
-                &tcx.sess.parse_sess,
+                &tcx.sess,
                 sym::repr128,
                 tcx.def_span(def_id),
                 "repr with 128-bit type is unstable",

compiler/rustc_hir_analysis/src/check/mod.rs

@@ -293,7 +293,7 @@ fn default_body_is_unstable(
 
     rustc_session::parse::add_feature_diagnostics_for_issue(
         &mut err,
-        &tcx.sess.parse_sess,
+        &tcx.sess,
         feature,
         rustc_feature::GateIssue::Library(issue),
         false,

compiler/rustc_hir_analysis/src/check/wfcheck.rs

@@ -1591,7 +1591,7 @@ fn check_method_receiver<'tcx>(
             return Err(if receiver_is_valid(wfcx, span, receiver_ty, self_ty, true) {
                 // Report error; would have worked with `arbitrary_self_types`.
                 feature_err(
-                    &tcx.sess.parse_sess,
+                    &tcx.sess,
                     sym::arbitrary_self_types,
                     span,
                     format!(