Fix Test_Instance_Version for Kusama

- Add `WithLegacy()` method to set unexported `legacy` field in wasmer test

Author: qdm12

lib/runtime/version.go

@@ -86,3 +86,10 @@ func DecodeVersion(encoded []byte) (version Version, err error) {
 		legacy:           true,
 	}, nil
 }
+
+// WithLegacy sets the legacy boolean (for Kusama)
+// and is only used for tests.
+func (v Version) WithLegacy() Version {
+	v.legacy = true
+	return v
+}

lib/runtime/wasmer/exports_test.go

@@ -158,7 +158,7 @@ func Test_Instance_Version(t *testing.T) {
 					{Name: [8]uint8{0xbc, 0x9d, 0x89, 0x90, 0x4f, 0x5b, 0x92, 0x3f}, Ver: 0x1},
 					{Name: [8]uint8{0x37, 0xc8, 0xbb, 0x13, 0x50, 0xa9, 0xa2, 0xa8}, Ver: 0x1},
 				},
-			},
+			}.WithLegacy(),
 		},
 		"polkadot v0825": {
 			instanceBuilder: func(t *testing.T) InstanceVersion {