debug: add argsString as launch property so we can use vscode inputs to setup the debuggee parameter in a promptString

[LucaHermann]

The problem is that currently the vscode-go extension only accepts args as an array or string and there is no easy way to take a string as an input from user and convert it to a splitted string array.

Therefore I propose that we add a property "argsString" that is a simple string which overrides "args" property if set (or vice-versa).

Here is my current code, feel free to propose any alternative solution.

Launch.json

configurations: [
    {
      "name": "GO -> Debug",
      "type": "go",
      "request": "launch",
      "mode": "debug",
      "program": "${workspaceFolder}/go/cmd/zenlaw",
      "cwd": "${workspaceFolder}/go",
      "argsString": ${input:processArgs}
    },
],
"inputs": [
    {
      "id": "processArgs",
      "description": "enter subcommands and flags",
      "type": "promptString",
    },
  ]

[Z-a-r-a-k-i]

See: microsoft/vscode-python-debugger#63

Would be so nice

[suzmue]

It seems like the vscode team is considering adding their own implementation (microsoft/vscode#83678) of this feature. If they do, then our users would benefit directly without a change to our extension.

Please be sure to add your support to that issue if you would like this feature!