[Accepted] SE-0120: Revise partition Method Signature

Proposal Link: swift-evolution/0120-revise-partition-method.md at master · apple/swift-evolution · GitHub

The review of "SE-0120: Revise partition Method Signature" ran from Active review July 12…19. The proposal has been *accepted*: There was very sparse commentary, and all of it was positive. The one requested change from the discussion is to remove @discardableResult, which has already been made to the proposal.

Thank you to Lorenzo Racca, Jeff Hajewski, and Nate Cook for proposing this cleanup!

-Chris Lattner
Review Manager