More work on the canonica_gf export

+ Abstract syntax now is converted directly from the Grammar and not via PGF,
  so you can use `gf -batch -no-pmcfg -f canonical_gf ...`, to export to
  canonical_gf while skipping PMCFG and PGF file generation completely.
+ Flags that are normally copied to PGF files are now included in the
  caninical_gf output as well (in particular the startcat flag).

src/compiler/GF/Compile/ConcreteToHaskell.hs

@@ -18,6 +18,8 @@ import GF.Infra.Ident(Ident,identS,prefixIdent) --,moduleNameS
 import GF.Infra.Option
 import GF.Compile.Compute.ConcreteNew(normalForm,resourceValues)
 import GF.Haskell
+--import GF.Grammar.Canonical
+--import GF.Compile.ConcreteToCanonical
 import Debug.Trace
 
 -- | Generate Haskell code for the all concrete syntaxes associated with
@@ -28,6 +30,9 @@ concretes2haskell opts absname gr =
        cnc<-allConcretes gr absname,
        let cncname = render cnc ++ ".hs" :: FilePath
            Ok cncmod = lookupModule gr cnc
+{-     (_,cnc)<-concretes2canonical opt absname gr,
+       let ModId name = concName cnc
+           cncname = name ++ ".hs" :: FilePath--}
   ]
 
 -- | Generate Haskell code for the given concrete module.