Merge 'stable-3.3'

This contains a revert of the change that brought back
experiments on stable-3.3 that we already deleted on
master: 5f000f8509

* origin/stable-3.3:
  Set version to 3.3.2-SNAPSHOT
  Set version to 3.3.1
  Set version to 3.2.7-SNAPSHOT
  Set version to 3.2.6
  Set version to 3.1.12-SNAPSHOT
  Set version to 3.1.11
  Fix httpcore dependency needed by httpclient
  Revert "Add support for Elasticsearch version 7.9.*"
  Revert "Add support for Elasticsearch version 7.10.*"
  Expose patch set level comment in stream event
  Ship a list of default experiments from the backend and allow disabling
  Revert "Clean up comment experiment flags"
  Make UI experiments configurable from gerrit.config
  ForRef#check should permit internal users to read all refs
  Bazel: Adapt RBE to produce Java 11 language level
  Add Jacek Centkowski to developers
  Add support for Elasticsearch version 7.10.*
  Add support for Elasticsearch version 7.9.*
  Align http dependencies with elasticsearch-rest-client
  ChangeNotes: Don't use ChangeIndex when we can avoid it

Change-Id: I873b0714115c779a536487b0c2a95159feefc6b1

java/com/google/gerrit/extensions/api/changes/ReviewInput.java

@@ -21,9 +21,11 @@ import com.google.gerrit.extensions.client.ReviewerState;
 import com.google.gerrit.extensions.common.FixSuggestionInfo;
 import com.google.gerrit.extensions.restapi.DefaultInput;
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Objects;
 
 /** Input passed to {@code POST /changes/[id]/revisions/[id]/review}. */
 public class ReviewInput {
@@ -117,6 +119,15 @@ public class ReviewInput {
     return this;
   }
 
+  public ReviewInput patchSetLevelComment(String message) {
+    Objects.requireNonNull(message);
+    CommentInput comment = new CommentInput();
+    comment.message = message;
+    // TODO(davido): Because of cyclic dependency, we cannot use here Patch.PATCHSET_LEVEL constant
+    comments = Collections.singletonMap("/PATCHSET_LEVEL", Collections.singletonList(comment));
+    return this;
+  }
+
   public ReviewInput label(String name, short value) {
     if (name == null || name.isEmpty()) {
       throw new IllegalArgumentException();