Adds support for compiling top level code to bytecode to be run in the
interpreter.

Also moves PassesFilter to String:: so that it can be used to filter top
level script names as well as functions (used in
https://codereview.chromium.org/1379093002/)

BUG=v8:4280
LOG=N

Review URL: https://codereview.chromium.org/1372293005

Cr-Commit-Position: refs/heads/master@{#31142}