Add comparator for TypeSystemDefinition
Add comparator for TypeSystemDefinition

Reviewed By: schaitoff

Differential Revision: D23575153

fbshipit-source-id: f5f8aff9674946652a92da241aac8ec94bb61dfd

kassens/relay,wincent/relay,yungsters/relay,voideanvalue/relay,facebook/relay,atxwebs/relay,yungsters/relay,wincent/relay,voideanvalue/relay,atxwebs/relay,kassens/relay,josephsavona/relay,xuorig/relay,yungsters/relay,voideanvalue/relay,voideanvalue/relay,xuorig/relay,kassens/relay,xuorig/relay,atxwebs/relay,wincent/relay,josephsavona/relay,xuorig/relay,voideanvalue/relay,wincent/relay,xuorig/relay,facebook/relay,voideanvalue/relay,facebook/relay,kassens/relay,wincent/relay,kassens/relay,facebook/relay,facebook/relay,wincent/relay,atxwebs/relay,xuorig/relay,kassens/relay,facebook/relay,josephsavona/relay