scala.tools.nsc.typechecker.PatternMatching
(optimizedCodegen: StringAdd).self
(optimizedCodegen: StringFormat).self
(optimizedCodegen: ArrowAssoc[OptimizedCodegen]).x
(Since version 2.10.0) Use leftOfArrow
instead
(optimizedCodegen: Ensuring[OptimizedCodegen]).x
(Since version 2.10.0) Use resultOfEnsuring
instead