ASTPrinter: Add SE number for PrimaryAssociatedTypes feature

Author: slavapestov

include/swift/Basic/Features.def

@@ -74,7 +74,7 @@ LANGUAGE_FEATURE(BuiltinStackAlloc, 0, "Builtin.stackAlloc", true)
 SUPPRESSIBLE_LANGUAGE_FEATURE(SpecializeAttributeWithAvailability, 0, "@_specialize attribute with availability", true)
 LANGUAGE_FEATURE(BuiltinAssumeAlignment, 0, "Builtin.assumeAlignment", true)
 SUPPRESSIBLE_LANGUAGE_FEATURE(UnsafeInheritExecutor, 0, "@_unsafeInheritExecutor", true)
-SUPPRESSIBLE_LANGUAGE_FEATURE(PrimaryAssociatedTypes, 0, "Primary associated types", true)
+SUPPRESSIBLE_LANGUAGE_FEATURE(PrimaryAssociatedTypes, 346, "Primary associated types", true)
 SUPPRESSIBLE_LANGUAGE_FEATURE(UnavailableFromAsync, 0, "@_unavailableFromAsync", true)
 SUPPRESSIBLE_LANGUAGE_FEATURE(NoAsyncAvailability, 340, "@available(*, noasync)", true)