This reverts commit c342ba82.

Reason for revert: Incorrectly parsed destructuring + logical assignment

Original change's description:
> Set .name of anonymous functions on the RHS of logical assignment.
> 
> https://github.com/tc39/proposal-logical-assignment/pull/24 reached
> consensus in June TC39.
> 
> Drive-by refactoring of testing for logical assignment ops using
> IsInRange.
> 
> Bug: v8:10579
> Change-Id: I5a203ba552a905cd28f75c5d223998431a1966ce
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2225809
> Reviewed-by: Marja Hölttä <marja@chromium.org>
> Commit-Queue: Shu-yu Guo <syg@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#68101}

TBR=marja@chromium.org,syg@chromium.org

Change-Id: I7992941bb31ad063611a45a65d20517803910475
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:10579
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2227059Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68115}