JDK 9 RFR of JDK-8075544: Add tiered testing definitions to the jdk repo

[joe darcy]

Hello,

For background, please see the tiered testing proposal over at

http://mail.openjdk.java.net/pipermail/jdk9-dev/2015-March/001991.html

The patch below adds "tier1" and "tier2" test definitions to the jdk 
repository; webrev at

     http://cr.openjdk.java.net/~darcy/8075544.0/

One can verify the test definitions are working as intended by running 
with "jtreg -l" to just list (rather than execute) the specified tests.

Thanks,

-Joe

--- old/test/TEST.groups    2015-03-19 11:46:47.229956324 -0700
+++ new/test/TEST.groups    2015-03-19 11:46:47.053956318 -0700
@@ -20,6 +20,22 @@
  #  questions.
  #

+# Tiered testing definitions
+tier1 = \
+    :jdk_lang \
+    :jdk_util \
+    :jdk_math
+
+tier2 = \
+    :jdk_io \
+    :jdk_nio \
+    :jdk_net \
+    :jdk_rmi \
+    :jdk_time \
+    :jdk_security \
+    :jdk_text \
+    :core_tools
+
  # java.lang package and VM runtime support
  jdk_lang = \
      java/lang \