hg: jdk9/dev/langtools: 2 new changesets

[lana.steuck at oracle.com]

Changeset: 4b7f5ea468d1
Author:    katleman
Date:      2015-07-23 11:54 -0700
URL:       http://hg.openjdk.java.net/jdk9/dev/langtools/rev/4b7f5ea468d1

Added tag jdk9-b74 for changeset 02681b7c4232

! .hgtags

Changeset: 827915d1e55e
Author:    lana
Date:      2015-07-23 15:27 -0700
URL:       http://hg.openjdk.java.net/jdk9/dev/langtools/rev/827915d1e55e

Merge