Commits
Joe Groff committed 47a77e1c8cc
Runtime: Provide implementations of opaque existential witnesses. Instantiate static value witness implementations for the common zero- and one-witness-table cases, which correspond to the "Any" type protocol<> and to single-protocol types. For protocol compositions, instantiate a value witness table that uses the layout information from existential metadata to perform the value witness operations. Swift SVN r9752