Enable inspector tests disabled when dart:html was switched to JS interop.

BUG=

Review URL: https://codereview.chromium.org/1689873002 .

git-svn-id: https://src.chromium.org/blink/branches/dart/2454_1@202775 bbb929c8-8fbe-4397-9dbb-9b2b20218538
14 files changed