hackium.pause() and startRepl() don't preserve history

[Jarrod Overson]

REPL's created manually via hackium.startRepl or hackium.pause do not store their history locally.

await hackium.pause();
// enter anything in the REPL, then unpause()
await hackium.pause();

Expected

Press up to move through last REPL's history

Actual

Pressing up does nothing.