node tests: Use override for insert_or_move.
node tests: Use override for insert_or_move.

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