Commits
Joe Groff committed 67009e492c5
SIL verifier: Require convert_function not to change function ABI. Write up a requireABICompatibleFunctionTypes check to make sure two function types share the same ABI. The real target here is to be able to apply this to vtable entries in order to uncover variance bugs like rdar://problem/19321484, but convert_function is a convenient testbed. Swift SVN r24666