Revert "[debugger] Rewrite the ScopeIterator/DebugEvaluate to use Scope rather than ScopeInfo for inner scopes."

This reverts commit 9e27d473.

Reason for revert: Layout Test failures: https://ci.chromium.org/buildbot/client.v8.fyi/V8-Blink%20Linux%2064/24123

Original change's description:
> [debugger] Rewrite the ScopeIterator/DebugEvaluate to use Scope rather than ScopeInfo for inner scopes.
> 
> This CL also bottlenecks all current scope handling in the ScopeIterator, and cleans up frame handling in debug-frames and the deoptimizer.
> 
> Change-Id: I061922a356ce17794262f8d77d5d7c824558fc50
> Reviewed-on: https://chromium-review.googlesource.com/1095094
> Commit-Queue: Toon Verwaest <verwaest@chromium.org>
> Reviewed-by: Georg Neis <neis@chromium.org>
> Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#53741}

TBR=yangguo@chromium.org,jarin@chromium.org,neis@chromium.org,jgruber@chromium.org,verwaest@chromium.org

Change-Id: I892856056258e3c68b36409b8b2d69e7686fc385
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/1102377
Commit-Queue: Yang Guo <yangguo@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53756}