Remove final in protocol extensions#8010

Merged

jrose-apple merged 3 commits intoswiftlang:masterfrom

KingOfBrian:bugfix/SR-1762-Remove-Final-In-Protocol-Extensions

Mar 13, 2017

Commits on Mar 9, 2017

Generate an error message on protocol extensions with the final attribute.
Brian King
committed

Commits on Mar 10, 2017

Remove the final attribute instead of invalidating it to ensure that child decls pass the ASTVerifier
Brian King
committed

Commits on Mar 12, 2017

Only generate a warning for Swift 3 and 4 mode.
Brian King
committed