port ee8108b7 (r34246)

  original commit message:
  This implements proper handling of local control flow (i.e. break and
  continue) that spans the boundary of a do-expression. We can no longer
  determine the number of operands to be dropped from the nesting of
  statements alone, instead we use the new precise operand stack depth
  tracking.

BUG=

Review URL: https://codereview.chromium.org/1735853002

Cr-Commit-Position: refs/heads/master@{#34277}