tree acb2acd55ba2ec3d3640952ef5241755608a9422
parent 5592b699e2f62c65700db64b85518c33aac7c8e0
author Alex Converse <aconverse@google.com> 1471391679 -0700
committer Alex Converse <aconverse@google.com> 1471641281 +0000

Skip the empty symbol in ANS symbol lookup.

There are lots of potential ways to speed up symbol lookup, but this is
faster than what is checked in, and matches what was used in the
benchmark.

Longterm the empty symbol should still be removed.

Change-Id: I2fb9347be578a07ea6f0615c19f50ddd5aace140