Vim only use the `~` prefix if the encoding is "latin1". We can just treat it as though the encoding is Unicode, and match the other places we format printable characters. Note that for Vim, if `'display'` contains "uhex", then all unprintable characters are shown in hex, including control characters (`^C`, etc.). IdeaVim does not support the `'display'` option.
`OperatorArguments.mode` is the mode *before* the command was completed, rather than the current mode, which is non-obvious. E.g. for a command in Insert mode, it will still be Insert, and for a (simple) command in Normal, it will still be Normal. The only difference is that a command such as `dw` would be in Operator-pending before the command is completed. That logic is not required for this method, so it's safe to use the current mode.
This allows us to start to deprecate `OperatorArguments.mode`.
`OperatorArguments.mode` is the mode *before* the command is completed, so might be Visual, Operator-pending, Insert, etc. It's not immediately obvious this is the case, so we're going to deprecate `OperatorArguments.mode` to avoid confusion with `editor.mode`.
It's not required for this method because it's only called for Visual-block mode.
Register specific handlers for Operator-pending mode instead of relying on a runtime flag for behaviour. Also refactors and renames some arrow motion handlers.
It's easier to just look at mode. We don't need the additional check on command builder, because we can't be in OP_PENDING without pushing an operator action to the command builder
Only Command has a count. The motion argument is now a sealed class hierarchy, and consists only of the motion action and optional argument. This is to reduce confusion over which count to use, and potential incorrect calculation of the count
