Add shell script in testsuite/compiler/canonical for replicating known issues

Ideally this is integrated into proper test suite, but that's too much overhead for now

testsuite/compiler/canonical/FoodsFin.gf

@@ -0,0 +1,6 @@
+
+-- (c) 2009 Aarne Ranta under LGPL
+
+concrete FoodsFin of Foods = FoodsI with 
+  (Syntax = SyntaxFin),
+  (LexFoods = LexFoodsFin) ;