Follow-up: Enable additional tests for base entity field access checking in Views

+++ b/core/modules/aggregator/tests/src/Kernel/Views/AggregatorItemViewsFieldAccessTest.php
@@ -45,8 +45,7 @@ public function testAggregatorItemFields() {
-    // @todo Expand the test coverage in https://www.drupal.org/node/2464635
...
+    // Still needs coverage for: iid, fid, link, author, timestamp, guid.

Should be added

+++ b/core/modules/comment/tests/src/Kernel/Views/CommentViewsFieldAccessTest.php
@@ -67,9 +79,11 @@ public function testCommentFields() {
     // @todo Expand the test coverage in https://www.drupal.org/node/2464635
-
+    // Still needs coverage for: pid,entity_id

too

+++ b/core/modules/file/tests/src/Kernel/Views/FileViewsFieldAccessTest.php
@@ -52,8 +52,6 @@ public function testFileFields() {
-    // @todo Expand the test coverage in https://www.drupal.org/node/2464635

The test group also needs fix to "file" module