Use `__CLASS__` instead of hardcoding class names
Use `__CLASS__` instead of hardcoding class names

Summary: Use `__CLASS__` instead of hardcoding class names. Depends on D12804.

Test Plan: Eyeball it.

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D12805

folsom-labs/arcanist,calblueprint/arcanist,chundongwang/arcanist,hach-que/arcanist,eSpark/arcanist,hach-que/arcanist,phacility/arcanist,wharris/arcanist,chundongwang/arcanist,calblueprint/arcanist,calblueprint/arcanist,chundongwang/arcanist,haskell-infra/arcanist,haskell-infra/arcanist,wikimedia/phabricator-arcanist,phacility/arcanist,coursera/arcanist,kevinseelbach/arcanist,PageUpPeopleOrg/arcanist-patches,wharris/arcanist,Symplicity/arcanist,eSpark/arcanist,aik099/arcanist,Khan/arcanist,wxstars/arcanist,r4nt/arcanist,r4nt/arcanist,kevinseelbach/arcanist,jra3/arcanist,codelabs-ch/arcanist,PageUpPeopleOrg/arcanist-patches,KieranHayes/arcanist,coursera/arcanist,Symplicity/arcanist,wxstars/arcanist,sneakpeeq/arcanist,jra3/arcanist,r4nt/arcanist,wikimedia/phabricator-arcanist,KieranHayes/arcanist,jra3/arcanist,zhihu/arcanist,memsql/arcanist,sneakpeeq/arcanist,codelabs-ch/arcanist,zhihu/arcanist,codelabs-ch/arcanist,alexmv/arcanist,folsom-labs/arcanist,fivestars/arcanist,aik099/arcanist,zhihu/arcanist,uber/arcanist,kevinseelbach/arcanist,PageUpPeopleOrg/arcanist-patches,fivestars/arcanist,alexmv/arcanist,fivestars/arcanist,memsql/arcanist,Khan/arcanist,hach-que/arcanist,KieranHayes/arcanist,sneakpeeq/arcanist,memsql/arcanist,coursera/arcanist,uber/arcanist,codelabs-ch/arcanist,wharris/arcanist,wikimedia/phabricator-arcanist,codelabs-ch/arcanist,wikimedia/phabricator-arcanist,haskell-infra/arcanist,r4nt/arcanist,sneakpeeq/arcanist,aik099/arcanist,haskell-infra/arcanist,aik099/arcanist,memsql/arcanist,jra3/arcanist,wharris/arcanist,eSpark/arcanist,Symplicity/arcanist,Symplicity/arcanist,uber/arcanist,alexmv/arcanist,fivestars/arcanist,hach-que/arcanist,wxstars/arcanist,phacility/arcanist,Khan/arcanist,KieranHayes/arcanist,folsom-labs/arcanist,chundongwang/arcanist,phacility/arcanist,Khan/arcanist,zhihu/arcanist,coursera/arcanist,wxstars/arcanist,PageUpPeopleOrg/arcanist-patches,phacility/arcanist,eSpark/arcanist,kevinseelbach/arcanist,folsom-labs/arcanist,uber/arcanist,alexmv/arcanist,calblueprint/arcanist