Add flags for verbose test output

We have recently seen scary CI runs that should have caught test
failures, but didn't. So we want to see all the test output even when
all tests are passing. At least for now. Feel free to revert this
change when you think that problem is gone and you are annoyed by the
verbose output.

Change-Id: Ic549f4fd18872cb073af148b8df0e49b887e98f0
diff --git a/polygerrit-ui/app/run_test.sh b/polygerrit-ui/app/run_test.sh
index 2ca1118..0ceca3c 100755
--- a/polygerrit-ui/app/run_test.sh
+++ b/polygerrit-ui/app/run_test.sh
@@ -6,6 +6,11 @@
     bazel_bin=bazel
 fi
 
+# At least temporarily we want to know what is going on even when all tests are
+# passing, so we have a better chance of debugging what happens in CI test runs
+# that were supposed to catch test failures, but did not.
 ${bazel_bin} test \
       "$@" \
+      --test_verbose_timeout_warnings \
+      --test_output=all \
       //polygerrit-ui:karma_test