Debug-Error

Enables breaking into the debugger on terminating errors automatically. The
script works in any host with a debugger, in the console it breaks into the
debugger, too. But troubleshooting is not that easy as in VS Code.

VS Code scenario. Let the PowerShell extension start and open its terminal.
For example, open a script. In the terminal invoke Debug-Error.ps1. Then
invoke a script. As a result, on errors VS Code breaks into the debugger
and opens the culprit script in the editor at the line with an error.

Without parameters this command enables debugging on failures globally.
Use the parameter Script in order to narrow the location of errors.
Use the switch Off in order to stop debugging on errors.

The command exploits updates of the variable StackTrace on terminating
errors. Setting this variable breakpoint enables debugging on failures.