TBIO-5141: Updated AriaRegisterTest to only use assertStructure
TBIO-5141: Updated AriaRegisterTest to only use assertStructure

Fixes a failure due to ordering with IE and Edge

tinymce/tinymce,FernCreek/tinymce,TeamupCom/tinymce,tinymce/tinymce,tinymce/tinymce,FernCreek/tinymce,TeamupCom/tinymce,FernCreek/tinymce