verify value range constraints for OER

tests/138-oer-constraints-OK.asn1

+
+-- OK: Everything is fine
+
+-- iso.org.dod.internet.private.enterprise (1.3.6.1.4.1)
+-- .spelio.software.asn1c.test (9363.1.5.1)
+-- .138
+
+ModuleOERConstraints
+	{ iso org(3) dod(6) internet (1) private(4) enterprise(1)
+		spelio(9363) software(1) asn1c(5) test(1) 138 }
+	DEFINITIONS IMPLICIT TAGS ::=
+BEGIN
+
+    A-noc ::= INTEGER                           -- No constraints
+    B-vis ::= INTEGER (0)                       -- Value constraint
+    C-vis ::= INTEGER (-1..1)                   -- Value range constraint
+    D-inv ::= INTEGER (0..10,...)               -- Extensible, not OER-visible
+    E-vis ::= INTEGER (0..10,...)(2..5)         -- OER-visible constraint 2..5
+    F-inv ::= INTEGER (0..10,...)(2..5,...)     -- Not OER-visible
+    G-vis ::= INTEGER (0..10,...)(2..5,...)(3)  -- OER-visible constraint 3
+
+END