Make run-libcore-tests reference jack output.

This fixes run-libcore-tests which failed previously due to Java 8
features not being supported on the non-Jack path.

Bug: 27996960
Change-Id: I4c9ee3439485b85910a2ed2bfe8d8c7bd02d6de9
diff --git a/run-libcore-tests b/run-libcore-tests
index 90a2e41..996030a 100755
--- a/run-libcore-tests
+++ b/run-libcore-tests
@@ -21,9 +21,9 @@
 
 $VOGAR \
   --vm-arg -Xmx32M \
-  --classpath out/target/common/obj/JAVA_LIBRARIES/core-tests_intermediates/javalib.jar \
-  --classpath out/target/common/obj/JAVA_LIBRARIES/sqlite-jdbc_intermediates/classes.jar \
-  --classpath out/target/common/obj/JAVA_LIBRARIES/bouncycastle_intermediates/classes.jar \
-  --classpath out/target/common/obj/JAVA_LIBRARIES/okhttp_intermediates/classes.jar \
+  --classpath out/target/common/obj/JAVA_LIBRARIES/core-tests_intermediates/classes.jack \
+  --classpath out/target/common/obj/JAVA_LIBRARIES/sqlite-jdbc_intermediates/classes.jack \
+  --classpath out/target/common/obj/JAVA_LIBRARIES/bouncycastle_intermediates/classes.jack \
+  --classpath out/target/common/obj/JAVA_LIBRARIES/okhttp_intermediates/classes.jack \
   $test_packages \
   || true