Escape queries that use ~ incorrectly.

Bug: 54199
Change-Id: Ia557813cad030fba88582eb87652bddc1f89e76a
Turn on phrase suggestion test.

We turned this test off due to a bug in Elasticsearch.  Now that we've
updated beta the bug has been fixed.

The test made sure that when you search for an unpopular phrase "nobel
prize" you don't get any suggestions when you spell it right.

Bug: 52860
Change-Id: Ia7899d4600be3841ffdb1742782cebe01ed6d021
Merge "Escape queries that use ~ incorrectly."
Merge "Turn on phrase suggestion test."