Open-source the JUnit test runner.

--
MOS_MIGRATED_REVID=112027454
diff --git a/src/BUILD b/src/BUILD
index a1dac3d..48afe1a 100644
--- a/src/BUILD
+++ b/src/BUILD
@@ -102,6 +102,7 @@
         "//src/java_tools/buildjar:JavaBuilder_deploy.jar",
         "//src/java_tools/singlejar:SingleJar_deploy.jar",
         "//src/java_tools/buildjar/java/com/google/devtools/build/buildjar/genclass:GenClass_deploy.jar",
+        "//src/java_tools/junitrunner/java/com/google/testing/junit/runner:Runner_deploy.jar",
         "//third_party/ijar",
         "//third_party/java/apkbuilder:embedded_tools",
     ] + select({