Drupal 8.0.0 beta 12. More info: https://www.drupal.org/node/2514176

core/modules/comment/config/install/core.entity_view_mode.comment.full.yml

@@ -0,0 +1,8 @@
+id: comment.full
+label: 'Full comment'
+status: false
+cache: true
+targetEntityType: comment
+dependencies:
+  module:
+    - comment

core/modules/comment/config/install/field.storage.comment.comment_body.yml

@@ -0,0 +1,17 @@
+langcode: en
+status: true
+dependencies:
+  module:
+    - comment
+    - text
+id: comment.comment_body
+field_name: comment_body
+entity_type: comment
+type: text_long
+settings: {  }
+module: text
+locked: false
+cardinality: 1
+translatable: true
+indexes: {  }
+persist_with_no_fields: true

core/modules/comment/config/install/system.action.comment_publish_action.yml

@@ -0,0 +1,9 @@
+id: comment_publish_action
+label: 'Publish comment'
+status: true
+langcode: en
+type: comment
+plugin: comment_publish_action
+dependencies:
+  module:
+    - comment

core/modules/comment/config/install/system.action.comment_save_action.yml

@@ -0,0 +1,9 @@
+id: comment_save_action
+label: 'Save comment'
+status: true
+langcode: en
+type: comment
+plugin: comment_save_action
+dependencies:
+  module:
+    - comment

core/modules/comment/config/install/system.action.comment_unpublish_action.yml

@@ -0,0 +1,9 @@
+id: comment_unpublish_action
+label: 'Unpublish comment'
+status: true
+langcode: en
+type: comment
+plugin: comment_unpublish_action
+dependencies:
+  module:
+    - comment