Test: Debugging from process explorer

[RMacfarlane]

Test for #63147

• anyOS @jrieken
• anyOS @egamma

Complexity: 3

Adds a 'Debug' context menu item to node processes. If an --inspect, --inspect-brk, --debug, or --debug-brk flag is found (with or without port number), a debug session is started against a debug port. If none of the flags are found but the process executable is node a debug session is started via the process ID and the SIGUSR1 mechanism.

[jrieken]

Works like a charm - would be even cooler if we can support electron_run_as_node and SIGUSR1

[egamma]

Nice!

It is also a convenient way to attach to a node process that you started from the built-in terminal with --inspect.
@weinand this should be documented in our docs as another way for how to debug a node progress.

[weinand]

@jrieken if we would stop using Electron's node and shipping an official node.js version, SIGUSR1 would work out of the box...

@egamma yep, makes sense, but I wonder how often regular users would want to open the "VS Code process explorer" to debug their own processes...