Fix GenNP and add GenNPIndef in ExtraBul

resource/bulgarian/ExtraBul.gf

@@ -2,7 +2,9 @@ concrete ExtraBul of ExtraBulAbs = CatBul **
   open ResBul, Coordination, Prelude in {
 
   lin
-    GenNP np = {s = \\aform => np.s ! Gen aform} ;
+    GenNP np = {s = \\gn => np.s ! Gen (aform gn Def Nom); spec=Indef} ;
+    
+    GenNPIndef np = {s = \\gn => np.s ! Gen (aform gn Indef Nom); spec=Indef} ;
     
     i8fem_Pron  = mkNP "àç" "ìåí" "ìîé" "ìîÿ" "ìîÿò" "ìîÿ" "ìîÿòà" "ìîå" "ìîåòî" "ìîè" "ìîèòå" (GSg Fem)  P1 ;
     i8neut_Pron = mkNP "àç" "ìåí" "ìîé" "ìîÿ" "ìîÿò" "ìîÿ" "ìîÿòà" "ìîå" "ìîåòî" "ìîè" "ìîèòå" (GSg Neut) P1 ;

resource/bulgarian/ExtraBulAbs.gf

@@ -1,6 +1,8 @@
 abstract ExtraBulAbs = Extra ** {
 
 fun
+  GenNPIndef : NP -> Quant ;
+
 -- Feminine variants of pronouns (those in $Structural$ are
 -- masculine, which is the default when gender is unknown).