Test that style sheets hosted inside shadow roots could be inspected if inspector is reopened.

DevTools session #1:

Disconnecting devtools.

DevTools session #2:
Dumping #inner node styles in shadow root:
Dumping matched rules: 
*.red* {    regular
    color: red; @[0:8-0:19]
    color: red; @[undefined-undefined]
}
Dumping inherited rules: