This fixes the bailout point used by JSCreateScriptContext nodes for
top-level code. The bailout point differs from the Crankshaft one as
parameter slots have not been copied and the context chain was not
extended yet in TurboFan. Hence a new bailout id is required.

R=ishell@chromium.org
TEST=cctest/test-decls/CrossScript --turbo-inlining

Review URL: https://codereview.chromium.org/1413933005

Cr-Commit-Position: refs/heads/master@{#31399}