AST: Fix the superclasses of some type nodes

Author: AnthonyLatsis

include/swift/AST/TypeNodes.def

@@ -153,21 +153,21 @@ ABSTRACT_TYPE(ReferenceStorage, Type)
   TYPE_RANGE(ReferenceStorage, First##Storage, Last##Storage)
 #include "swift/AST/ReferenceStorage.def"
 ABSTRACT_TYPE(AnyGeneric, Type)
-  ABSTRACT_TYPE(NominalOrBoundGenericNominal, Type)
-    ABSTRACT_TYPE(Nominal, Type)
+  ABSTRACT_TYPE(NominalOrBoundGenericNominal, AnyGenericType)
+    ABSTRACT_TYPE(Nominal, NominalOrBoundGenericNominalType)
       TYPE(Enum, NominalType)
       TYPE(Struct, NominalType)
       TYPE(Class, NominalType)
       TYPE(Protocol, NominalType)
       TYPE(BuiltinTuple, NominalType)
       TYPE_RANGE(Nominal, Enum, BuiltinTuple)
-    ABSTRACT_TYPE(BoundGeneric, Type)
+    ABSTRACT_TYPE(BoundGeneric, NominalOrBoundGenericNominalType)
       TYPE(BoundGenericClass, BoundGenericType)
       TYPE(BoundGenericEnum, BoundGenericType)
       TYPE(BoundGenericStruct, BoundGenericType)
       TYPE_RANGE(BoundGeneric, BoundGenericClass, BoundGenericStruct)
     TYPE_RANGE(NominalOrBoundGenericNominal, Enum, BoundGenericStruct)
-  UNCHECKED_TYPE(UnboundGeneric, Type)
+  UNCHECKED_TYPE(UnboundGeneric, AnyGenericType)
   TYPE_RANGE(AnyGeneric, Enum, UnboundGeneric)
 ABSTRACT_TYPE(AnyMetatype, Type)
   TYPE(Metatype, AnyMetatypeType)