[Property Wrappers] Add new contextual type purposes for property wrappers

to produce better diagnostics when there's a 'wrappedValue' type mismatch.

lib/Sema/CSSimplify.cpp

@@ -10156,6 +10156,8 @@ void ConstraintSystem::addContextualConversionConstraint(
   case CTP_CoerceOperand:
   case CTP_SubscriptAssignSource:
   case CTP_ForEachStmt:
+  case CTP_WrappedProperty:
+  case CTP_ComposedPropertyWrapper:
     break;
   }