Merge branch '55-fix-equals-for-TypeCons' into 'master'

Fix == for TypeCons, fixing a bug where multiple alternatives of some generic...

Closes #55

See merge request clean-compiler-and-rts/compiler!12

frontend/compare_types.icl

@@ -129,8 +129,10 @@ instance == SignClassification where
 instance == TypeCons where
 	(==) (TypeConsSymb x) (TypeConsSymb y) = x == y 
 	(==) (TypeConsBasic x) (TypeConsBasic y) = x == y 
+	(==) (TypeConsUnboxedArray x) (TypeConsUnboxedArray y) = x == y
 	(==) TypeConsArrow TypeConsArrow = True
 	(==) (TypeConsVar x) (TypeConsVar y) = x == y
+	(==) (TypeConsQualifiedIdent xmod xname) (TypeConsQualifiedIdent ymod yname) = xmod == ymod && xname == yname
 	(==) _ _ = False
 
 ::	CompareValue :== Int