Filter out lib/js/mock_test from csp
Filter out lib/js/mock_test from csp

Bug: https://github.com/dart-lang/sdk/issues/42085

CSP policy disallows eval usage.

Change-Id: Icee740de9fa894a0b9fdd3a04795c0880db77e79
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/175586
Reviewed-by: Sigmund Cherem <beaea8fd7d2a56555046ba4f362c8a93e3938576@google.com>
Commit-Queue: Srujan Gaddam <4175f2f2dd3cde6c8ffb10fc9674dc09abf813fe@google.com>

dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk