unicode/cldr: expose element name

Change-Id: I5b4aa69c0557153cc23d36cea78e5b969b555373
Reviewed-on: https://go-review.googlesource.com/72210
Run-TryBot: Marcel van Lohuizen <mpvl@golang.org>
Reviewed-by: Nigel Tao <nigeltao@golang.org>
diff --git a/unicode/cldr/base.go b/unicode/cldr/base.go
index 2382f4d..63cdc16 100644
--- a/unicode/cldr/base.go
+++ b/unicode/cldr/base.go
@@ -62,6 +62,11 @@
 	return ""
 }
 
+// Element returns the XML element name.
+func (e *Common) Element() string {
+	return e.name
+}
+
 // GetCommon returns e. It is provided such that Common implements Elem.
 func (e *Common) GetCommon() *Common {
 	return e