Other: Added pluginName property to editing plugin.

Author: scofalik

src/headingediting.js

@@ -23,6 +23,13 @@ const defaultModelElement = 'paragraph';
  * @extends module:core/plugin~Plugin
  */
 export default class HeadingEditing extends Plugin {
+	/**
+	 * @inheritDoc
+	 */
+	static get pluginName() {
+		return 'HeadingEditing';
+	}
+
 	/**
 	 * @inheritDoc
 	 */

tests/headingediting.js

@@ -25,6 +25,10 @@ describe( 'HeadingEditing', () => {
 			} );
 	} );
 
+	it( 'should have pluginName', () => {
+		expect( HeadingEditing.pluginName ).to.equal( 'HeadingEditing' );
+	} );
+
 	it( 'should be loaded', () => {
 		expect( editor.plugins.get( HeadingEditing ) ).to.be.instanceOf( HeadingEditing );
 	} );