bidi: fixed build breakage due to crossing changes

Change-Id: I51c91407e4e62ba588d271b94a0a2ae7697a7336
Reviewed-on: https://go-review.googlesource.com/17780
Reviewed-by: Marcel van Lohuizen <mpvl@golang.org>
diff --git a/bidi/core_test.go b/bidi/core_test.go
index 4fb35bb..439b4c4 100644
--- a/bidi/core_test.go
+++ b/bidi/core_test.go
@@ -98,7 +98,7 @@
 	if !*long {
 		return
 	}
-	parse("BidiCharacterTest.txt", func(p *ucd.Parser) {
+	ucd.Parse(gen.OpenUCDFile("BidiCharacterTest.txt"), func(p *ucd.Parser) {
 		var (
 			types      []class
 			pairTypes  []bracketType