node tests: Add test() wrapper for reload_state.
node tests: Add test() wrapper for reload_state.

This is kinda overkill for such a tiny test, but
it should future-proof us from intra-test leaks.

hackerkid/zulip,rht/zulip,rht/zulip,punchagan/zulip,andersk/zulip,eeshangarg/zulip,punchagan/zulip,andersk/zulip,kou/zulip,eeshangarg/zulip,kou/zulip,zulip/zulip,zulip/zulip,zulip/zulip,andersk/zulip,hackerkid/zulip,andersk/zulip,punchagan/zulip,hackerkid/zulip,rht/zulip,punchagan/zulip,kou/zulip,hackerkid/zulip,hackerkid/zulip,rht/zulip,zulip/zulip,punchagan/zulip,rht/zulip,eeshangarg/zulip,punchagan/zulip,punchagan/zulip,eeshangarg/zulip,kou/zulip,rht/zulip,kou/zulip,andersk/zulip,eeshangarg/zulip,rht/zulip,eeshangarg/zulip,eeshangarg/zulip,zulip/zulip,hackerkid/zulip,zulip/zulip,andersk/zulip,kou/zulip,kou/zulip,zulip/zulip,andersk/zulip,hackerkid/zulip