port 0b3066b8 (r33414)

  original commit message:
  This implements a first prototype of stack unwinding for interpreted
  frames. The unwinding machinery performs a range-based lookup in the
  given handler table and potentially continues dispatching at the handler
  offset. Note that this does not yet correctly restore the context to the
  correct value when the handler is being entered.

BUG=

Review URL: https://codereview.chromium.org/1616613002

Cr-Commit-Position: refs/heads/master@{#33425}