[Simulator] table index is out of bounds crash

[microbit-matt-hillsdon]

There's a few of these to look at. The error is immediately after the simulator starts for the first time in the session.

Chrome 106, Windows 10.

wasm://wasm/004af5b6:wasm-function[908]:0xcbcfe
5
/v/0.1/build/firmware.js in ret.<computed> at line 1895:35

/v/0.1/build/firmware.js at line 1045:22

/v/0.1/build/firmware.js in invoke_iiii at line 2463:12

/v/0.1/build/firmware.js in imports.<computed> at line 1861:35

At minimum we we need to improve our ability to understand this sort of crash.

The simulator will automatically stop in this scenario but it'll be confusing to the user.

[microbit-matt-hillsdon]

Initial work here: microbit-foundation/micropython-microbit-v2-simulator#89