[unified-heap] Disable more ScriptWrappableMarkingVisitor tests

Most tests depend on the intercepting scope that sets a temporary
visitor and restores the fixed wrapper tracing visitor. Avoid executing
those tests with unified heap as they anyways become obsolete after
launch.

Tbr: haraken@chromium.org
Bug: 843903
Change-Id: If106c9c873ab07d1bf2219454a25710a3dab6e2f
Reviewed-on: https://chromium-review.googlesource.com/c/1293577
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#601607}
1 file changed