swift

56664088 - [semantic-arc] Expand out the infrastructure for disabling/enabling specific opts and use that to add new split up semantic-arc tests.

[semantic-arc] Expand out the infrastructure for disabling/enabling specific opts and use that to add new split up semantic-arc tests. This split will ensure we are testing only what a specific optimization is doing rather than all together. NOTE: The way I split up the tests is I first split up each of the tests by subject area by hand that I thought were specifically testing one pass. Then any tests where the FileCheck tests started to fail due to us not running the other passes, I put back a copy in the original semantic-arc-opts.sil to ensure we do not regress. Note, the tests that I copied for each of these passes are originally from semantic-arc-opts.sil. I left them there as well so we could see all of the opts together. I also only copied the ones that were testing pass specific functionality.