The data produced by the preparser scope analysis might be large.

ByteArrays are already allowed in the large object space.

This fixes mjsunit/asm/poppler/poppler.js with the flag on.

First version landed as https://chromium-review.googlesource.com/c/484459/
this version includes gen-postmortem-metadata fixes.

BUG=v8:5516

Change-Id: I2218c4729ba9feefd6595a93e5cc6d2e52ebda0e
Reviewed-on: https://chromium-review.googlesource.com/486641Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44835}