Commits
Joe Groff committed 03dd05ca07c
SIL: Add ProjectExistential and AllocExistential. ProjectExistential derives the value pointer from an existential, and AllocExistential initializes an existential's witness tables and allocates its value. Tweak SILGen's handling of ExistentialMemberRefExprs to emit a project_existential between querying the method and applying it. Swift SVN r3508