🧑‍💻 Add more info to the setAbstractMethod error

lib/function_inheritance.js

@@ -1778,14 +1778,22 @@ defClassMethod(function decorateMethod(constructor, decorator, key, method) {
  *
  * @author   Jelle De Loecker <[email protected]>
  * @since    0.7.18
- * @version  0.7.18
+ * @version  0.9.3
  *
  * @param    {Function}   constructor  Constructor to modify prototype of
  * @param    {string}     name         The name of the method
  */
 defClassMethod(function setAbstractMethod(constructor, name) {
 	Fn.setMethod(constructor, name, function abstractMethod() {
-		let message = 'The `' + name + '` method has not been implemented in the `' + this.constructor.name + '` class.';
+		let name = this.constructor.namespace;
+
+		if (name) {
+			name += '.' + this.constructor.name;
+		} else {
+			name = this.constructor.name;
+		}
+
+		let message = 'The `' + name + '` method has not been implemented in the `' + name + '` class.';
 		throw new Error(message);
 	});
 });