Tests target info reported by paint worklet.
{
sessionId : <string>
targetInfo : {
attached : true
browserContextId : <string>
canAccessOpener : false
targetId : <string>
title : http://127.0.0.1:8000/inspector-protocol/resources/inspector-protocol-page.html
type : worklet
url : http://127.0.0.1:8000/inspector-protocol/resources/inspector-protocol-page.html
}
waitingForDebugger : false
}