Update prefer-t-throws.js

Author: Mesteery

rules/prefer-t-throws.js

@@ -4,6 +4,10 @@ const {visitIf} = require('enhance-visitors');
 const createAvaRule = require('../create-ava-rule');
 const util = require('../util');
 
+// This function checks if there is an AwaitExpression, which is not inside another function.
+// Moreover, if the function encounters a ReturnStatement, it throws an error to avoid reporting special cases as linter error.
+//
+// TODO: find a simpler way to do this
 function hasAwaitExpression(nodes) {
 	if (!nodes) {
 		return false;