Build cfgm files using the nondeterministic conversion. Allow coercions in cfgm rule functions and remove the name.

src/GF/CFGM/AbsCFG.hs

@@ -1,4 +1,3 @@
-
 module AbsCFG where
 
 -- Haskell module generated by the BNF converter
@@ -18,7 +17,12 @@ data Flag =
   deriving (Eq,Ord,Show)
 
 data Rule =
-   Rule Ident Name Profile Category [Symbol]
+   Rule Fun Profile Category [Symbol]
+  deriving (Eq,Ord,Show)
+
+data Fun =
+   Cons Ident
+ | Coerce
   deriving (Eq,Ord,Show)
 
 data Profile =
@@ -34,10 +38,6 @@ data Symbol =
  | TermS String
   deriving (Eq,Ord,Show)
 
-data Name =
-   Name SingleQuoteString
-  deriving (Eq,Ord,Show)
-
 data Category =
    Category SingleQuoteString
   deriving (Eq,Ord,Show)