libgo: Update Go library to master revision 15489/921e53d4863c.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@195560 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 2 insertions, 0 deletions

diff --git a/libgo/go/container/list/list.go b/libgo/go/container/list/list.go
index 69818c3b75b..562a5badbd3 100755
--- a/libgo/go/container/list/list.go
+++ b/libgo/go/container/list/list.go
@@ -108,6 +108,8 @@ func (l *List) insertValue(v interface{}, at *Element) *Element {
 func (l *List) remove(e *Element) *Element {
 	e.prev.next = e.next
 	e.next.prev = e.prev
+	e.next = nil // avoid memory leaks
+	e.prev = nil // avoid memory leaks
 	e.list = nil
 	l.len--
 	return e