To achieve this:
- fixed crash on windows - String16::fromInteger used "%zu" which doesn't support by VS2013 compiler, wrapped with ifdef else.
- fixed asan for d8 - unique_ptr on array has single element type.
- force Debugger.disable at the end of test.

BUG=chromium:635948
R=dgozman@chromium.org,yangguo@chromium.org,machenbach@chromium.org

Review-Url: https://codereview.chromium.org/2450653002
Cr-Commit-Position: refs/heads/master@{#40546}