peace grammars patched to work with the new API

examples/peacekeeping/swedish/PeaceSyntax_Swe.gf

@@ -1,5 +1,5 @@
 --# -path=.:present:prelude
 
 concrete PeaceSyntax_Swe of PeaceSyntax = PeaceCat_Swe ** PeaceSyntaxI with
-  (Lang = LangSwe) ;
+  (Lang = LangSwe), (Constructors = ConstructorsSwe) ;