Add missing kEnd opcode after each body. Also, avoid the macro.
This fix is needed for follow-up changes to the control transfer
computation.

R=ahaas@chromium.org
BUG=v8:5822

Change-Id: If2b4dbea831ec40939a2045701f3d13479331773
Reviewed-on: https://chromium-review.googlesource.com/485481Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44794}