Port 025d476c

Original commit message:
    Adds a slot for the bytecode offset to interpreter stack frames and
    saves it on calls, and restores after calls.

    Also fixes RawMachineAssembler::Return() to call MergeControlToEnd.

R=rmcilroy@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=v8:4280
LOG=N

Review URL: https://codereview.chromium.org/1531873002

Cr-Commit-Position: refs/heads/master@{#32920}