Detect classes which are Litho Sections

Summary:
Populate class name for Litho Sections.
See D22922106 (86cafb9e80) for reference

Reviewed By: adityasharat

Differential Revision: D22949896

fbshipit-source-id: d804971708cf8c8466dd74eda3e750957dc95fc9

android/plugins/litho/src/main/java/com/facebook/flipper/plugins/litho/DebugSectionDescriptor.java

@@ -107,6 +107,13 @@ public class DebugSectionDescriptor extends NodeDescriptor<DebugSection> {
     return attrs;
   }
 
+  @Override
+  public FlipperObject getExtraInfo(DebugSection node) {
+    FlipperObject.Builder extraInfo = new FlipperObject.Builder();
+    extraInfo.put("className", node.getSection().getClass().getName());
+    return extraInfo.build();
+  }
+
   @Override
   public void setHighlighted(DebugSection node, boolean selected, boolean isAlignmentMode)
       throws Exception {