SIL optimizations: Implement the new API for analysis invalidation.

There are now separate functions for function addition and deletion instead of InvalidationKind::Function.
Also, there is a new function for witness/vtable invalidations.

rdar://problem/29311657

lib/SILOptimizer/Transforms/Devirtualizer.cpp

@@ -115,7 +115,7 @@ bool Devirtualizer::devirtualizeAppliesInFunction(SILFunction &F,
     // be beneficial to rerun some earlier passes on the current
     // function now that we've made these direct references visible.
     if (CalleeFn->isDefinition() && CalleeFn->shouldOptimize())
-      notifyPassManagerOfFunction(CalleeFn, nullptr);
+      notifyAddFunction(CalleeFn, nullptr);
   }
 
   return Changed;