Reason: Breaks side-effect free debug evaluate for let/const declarations

Revert "[interpreter/runtime] Create ScriptContext before Script invocation"

This reverts commit 9e51f79e.

Revert "[interpreter/runtime] Hole script let/const requiring initialization in NewScriptContext"

This reverts commit a128e38f.

TBR=verwaest@chromium.org,leszeks@chromium.org,szuend@chromium.org,ulan@chromium.org

Bug: chromium:1043151
Change-Id: Ib802789f45f8d7dbb4c2ccc30c6246e32155a92b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2013112
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#65915}