hg: jdk9/sandbox/langtools: 8163999: Workaround intermittent failures of TreePosTest.java due to C2 memory usage

[chris.hegarty at oracle.com]

Changeset: 2bf73f8c25e0
Author:    darcy
Date:      2016-08-15 13:42 -0700
URL:       http://hg.openjdk.java.net/jdk9/sandbox/langtools/rev/2bf73f8c25e0

8163999: Workaround intermittent failures of TreePosTest.java due to C2 memory usage
Reviewed-by: jjg

! test/tools/javac/tree/TreePosTest.java
! test/tools/javac/varargs/7043922/T7043922.java