warning message cleanup. Now compiles warning-free, all tests passed.

* xmlschemas.c, xmlschemastypes.c: warning message cleanup.
  Now compiles warning-free, all tests passed.
* SAX2.c: small change to comments for documentation.
  No change to logic.
diff --git a/xmlschemastypes.c b/xmlschemastypes.c
index 7214adb..78e10fc 100644
--- a/xmlschemastypes.c
+++ b/xmlschemastypes.c
@@ -250,6 +250,8 @@
 	case XML_SCHEMAS_QNAME:	
 	case XML_SCHEMAS_NOTATION:	
 	    ret->flags |= XML_SCHEMAS_TYPE_BUILTIN_PRIMITIVE;
+	default:
+	break;
     }
 
     xmlHashAddEntry2(xmlSchemaTypesBank, ret->name,
@@ -3665,6 +3667,9 @@
         case XML_SCHEMAS_NMTOKENS:
 	    TODO
 	    break;
+	case XML_SCHEMAS_ANYTYPE:
+	case XML_SCHEMAS_ANYSIMPLETYPE:
+	    break;
     }
     return -2;
 }