scala/scala — pull request #3635 by retronym (2014-03-15 15:07:53+00:00)
Title: SI-8329 Better hygiene for patmat partial functions

Don't enter synthetic parameters of `applyOrElse` et al into
scope when typechecking the user-code; instead reference those
symbolically.

Review by @adriaanm. For 2.11.1