The cached resource data pointer is a source of non-determinism when
creating the snapshot.  Long-term we may not keep the native source in
memory anyways, so caching the resource data pointer will not be
possible.

R=ulan@chromium.org
BUG=v8:4886
LOG=N

Review-Url: https://codereview.chromium.org/1990183002
Cr-Commit-Position: refs/heads/master@{#36361}