Commits
Manman Ren committed bc004b6b880
[Generic Specializer] handle specializing inherited conformance. When we have a WitnessMethodInst in the original SILFunction and self of the WitnessMethodInst will be replaced with the actual type that has an inherited protocol conformance, we need to upcast the lookup type of the WitnessMethodInst to make sure the lookup type and the conformance type matches. rdar://18068002 Swift SVN r21311