Use the test runner on the bots.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1221303016.

pkgs/stack_trace/.test_config

diff --git a/pkgs/stack_trace/.test_config b/pkgs/stack_trace/.test_config
new file mode 100644
index 0000000..412fc5c
--- /dev/null
+++ b/pkgs/stack_trace/.test_config
@@ -0,0 +1,3 @@
+{
+  "test_package": true
+}
\ No newline at end of file