hg: jdk/sandbox: 2 new changesets

[chris.hegarty at oracle.com]

Changeset: 2c7a508ee1f4
Author:    coleenp
Date:      2018-08-28 18:03 -0400
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/2c7a508ee1f4

8210088: ProblemList gc/epsilon/TestMemoryMXBeans.java
Reviewed-by: kbarrett, jiangli

! test/hotspot/jtreg/ProblemList.txt

Changeset: 867acd5a4140
Author:    twisti
Date:      2018-08-28 15:17 -0700
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/867acd5a4140

8210008: custom extension for make/SourceRevision.gmk
Reviewed-by: erikj

! make/SourceRevision.gmk