Make Code Executed with `Run Selection/Line in Interactive Window` Accessible with Up Arrow

[colinbrust]

When using the interactive shell, you can either directly enter code into the interactive terminal, or select code in a script and run it in the interactive shell with the Run Selection/Line in Interactive Window option. However, if you press the up arrow in the interactive terminal, it only registers code that was typed and executed from the interactive terminal. It would be very helpful if pressing the up arrow pulled up code that was executed using the Run Selection/Line in Interactive Window option.