This reverts commit f2a74165.

Reason for revert: Clusterfuzz
Bug: chromium:1026479

Original change's description:
> [regexp] Re-execute regexp when '.indices' is accessed.
> 
> Instead of storing a pointer to the last_match_info, which may
> change, this cl modifies JSRegExpResult to store a pointer to
> the original JSRegExp which generated it, as well as additional
> data needed to re-execute the match.
> 
> Basically a straight copy and tidy off jgruber@'s prototype:
> https://chromium-review.googlesource.com/c/v8/v8/+/1876810
> 
> Bug: v8:9548
> Change-Id: I11b7deae681b8287e41e8d0e342291ff484751fb
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1910129
> Commit-Queue: Joshua Litt <joshualitt@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#65053}

TBR=jgruber@chromium.org,joshualitt@chromium.org

Change-Id: I6294e3d7ac0b3e2bd9404697823b8d3cc2545c16
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:9548
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1925651Reviewed-by: Joshua Litt <joshualitt@chromium.org>
Commit-Queue: Joshua Litt <joshualitt@chromium.org>
Cr-Commit-Position: refs/heads/master@{#65057}