hg: jdk10/jdk10/jdk: 2 new changesets

[abhi.saha at oracle.com]

Changeset: 820a3631d030
Author:    asaha
Date:      2017-08-25 04:59 +0000
URL:       http://hg.openjdk.java.net/jdk10/jdk10/jdk/rev/820a3631d030

Added tag jdk-10+21 for changeset 4e08a69241ea

! .hgtags

Changeset: 40dec428648e
Author:    asaha
Date:      2017-08-25 05:02 +0000
URL:       http://hg.openjdk.java.net/jdk10/jdk10/jdk/rev/40dec428648e

Merge

- test/lib/testlibrary/ClassFileInstaller.java