This removes support for optimized frame which lack deoptimization
information. All optimized JavaScript frames now imply that the
underlying bytecode is available too.

R=rmcilroy@chromium.org
BUG=v8:6409

Change-Id: Ie73c0a376002466884388f1da9e1ec2741884596
Reviewed-on: https://chromium-review.googlesource.com/612162
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49442}