fix: component id should be on the prototype (#6104)

core/interfaces/i_block_dragger.js

@@ -63,4 +63,9 @@ IBlockDragger.prototype.endDrag;
  */
 IBlockDragger.prototype.getInsertionMarkers;
 
+/**
+ * Sever all links from this object and do any necessary cleanup.
+ */
+IBlockDragger.prototype.dispose;
+
 exports.IBlockDragger = IBlockDragger;

core/interfaces/i_component.js

@@ -32,6 +32,6 @@ const IComponent = function() {};
  * ComponentManager.
  * @type {string}
  */
-IComponent.id;
+IComponent.prototype.id;
 
 exports.IComponent = IComponent;