Debugging issues

[CsCherrYY]

It seems there are some debugging issues. Let's investigate and solve them.

• Recent tasks debugging ignores arguments #895
• Debugging with arguments not working #894
• "The Java Debugger extension is not activated." error when launching "run" task #880
• Debugging doesn't work #876
• I had enabled the "Debug JavaExec tasks" feature, but can not find the debug icon on tasks. #809
• Gradle TestKit debugging README #524
• Running a debug task with args shows incorrect task state #522

[dboreham]

Regarding the bug above relating to "debugging doesn't work at all" : #809, based on my testing they're either correct (it doesn't work), or the setup required to enable debugging is so obscure that nobody can figure it out. See: #1118

I've debugged the issue and added some notes.

[CsCherrYY]

@dboreham Thanks a lot for the help! As you know we just plan to solve these debugging related issues in the next month. I'm sorry I don't have enough time this week, and I'll start to investigate it from about next week. Let's revisit this feature and make it work well then.