See [example](https://cadlplayground.z22.web.core.windows.net/cadl-azure/?c=aW1wb3J0ICJAYXp1cmUtdG9vbHMvdHlwZXNwZWMtxhVyZXNvdXJjZS1tYW5hZ2VyIjsKCnVzaW5nIEHEIC5SxyBNxh87xx1PcGVuQVBJOwoKbW9kZWwgVGVzdCB7CiAgQGV4dGVuc2lvbigieC1tcy1pZGVudGlmaWVycyIsIFsiY2hhbmdlZCJdKQogIGl0ZW1zOiBJdGVtW107Cn3IT8QRx09uY29kZWROYW1lKCJhcHBsaWNhdGlvbi9qc29uIiwgyVDET3Byb3AxOiBzdHJpbmc7xxEyyhF9CgpvcCByZWFkKCk65QC0Ow%3D%3D&e=%40azure-tools%2Ftypespec-autorest&options=%7B%7D). Seems playground does not show the lint warning. Local compile will report this warning: 
See example.
Seems playground does not show the lint warning.
Local compile will report this warning:
