Inconsistency in detecting unquoted args within case statements according to whether or not a command is negated.

[alexr00]

The code with a problem is:

case "${1}" in
    0)  ls -la
        ;;
    1)  ! ls -la

It looks like:

It should look like:

I would expect -la to have the same scopes in both places it's used.

Originall from @frypf in https://github.com/microsoft/vscode/issues/176190#issuecomment-1459706171

[jeff-hykin]

duplicate of #41 (recently renamed to be more clear)