Use mono source for debugger-libs

[jonathanpeppers]

I was attempting to use this extension to debug a Xamarin.Android application. It "sort of" works, except the locals render in an odd way, such as:

Local
    arg0: 0xfffffffff0b76140
    arg1: 0xffffffffffff894c
    arg2: 0x0

I think the issue is just that the Mono debugger libraries are old and out of date.

The NuGet packages being used for the Mono debugger are unlisted and unmaintained, such as:

https://www.nuget.org/packages/Mono.Debugging/1.0.20161020.46

Within Xamarin, most projects add a git submodule for mono/debugger-libs and xamarin/nrefactory and build these libraries from source. This allowed me to remove NuGet packages and use @(ProjectReference) instead.

I also had to update $(TargetFrameworkVersion) to v4.7.2.

After doing this, I updated some other NuGet packages so their versions matched what debugger-libs is using:

• Mono.Cecil 0.10.1
• Newtonsoft.Json 10.0.3

Now I can see proper locals in a Xamarin.Android app!

Using a launch.json:

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Debug",
            "type": "mono",
            "request": "attach",
            "address": "localhost",
            "port": 10000,
            "preLaunchTask": "Debug",
        }
    ]
}

And a tasks.json:

{
    "version": "2.0.0",
    "tasks": [
        {
            "label": "Debug",
            "type": "shell",
            "command": "msbuild HelloAndroid/HelloAndroid.csproj -t:Install,_Run -p:AndroidAttachDebugger=true"
        },
    ]
}

I will setup a .NET 6 example in this repo down the road:

https://github.com/xamarin/net6-samples

[jonathanpeppers]

I was seeing this build error locally as well:

src/typescript/tests/adapter.test.ts:91:38 - error TS2559: Type '10' has no properties in common with type '{ path?: string | RegExp; line?: number; column?: number; }'.

I think I did the right thing to fix it, I don't know much about TypeScript, though.

[jonathanpeppers]

@akoeplinger are you able to review or merge this?