Add Change#toString(), after all these years

Change-Id: I1540070212dd4ba494db624d98c00297798da2ae

gerrit-reviewdb/src/main/java/com/google/gerrit/reviewdb/client/Change.java

@@ -598,4 +598,14 @@ public final class Change {
   public void setTopic(String topic) {
     this.topic = topic;
   }
+
+  @Override
+  public String toString() {
+    return new StringBuilder(getClass().getSimpleName())
+        .append('{').append(changeId)
+        .append(" (").append(changeKey).append("), ")
+        .append("dest=").append(dest).append(", ")
+        .append("status=").append(status).append('}')
+        .toString();
+  }
 }

gerrit-server/src/main/java/com/google/gerrit/server/query/change/ChangeData.java

@@ -656,7 +656,13 @@ public class ChangeData {
 
   @Override
   public String toString() {
-    return MoreObjects.toStringHelper(this).addValue(getId()).toString();
+    MoreObjects.ToStringHelper h = MoreObjects.toStringHelper(this);
+    if (change != null) {
+      h.addValue(change);
+    } else {
+      h.addValue(legacyId);
+    }
+    return h.toString();
   }
 
   public static class ChangedLines {