Add "Analyze" action to the same places as ILSpy as well as decompiled code "context"

[ilyvion]

After I switched from Windows to Linux, I can't use the ILSpy WPF application anymore, so I decided to try the vscode integration, and it's leaving me hanging on some of the features I used to use the most:

1. In the search results and analyze panels, you can't right-click a result and analyze it again.
2. The same goes for the decompiled code, you can't right-click an item in the code and analyze it. In fact, it doesn't seem to be aware of its context at all: you can't get tooltips about the types used in the decompiled code by hovering your mouse pointer on them, you can't Ctrl+Click to navigate to them; it's like it's an entirely stand-alone document instead of code in context, like in the ILSpy app.

[ilyvion]

There also doesn't seem to be any way to analyze fields; there's no analyze button on those:

Compared to on a property:

I can't verify right now, since I can't run ILSpy proper, but I'm 95+% sure this is possible to analyze there.

[Rpinski]

Hi @ilyvion!

1. Analyzing items from "Search Result" and "Analyze" panels
   This absolutely makes sense, so I've added this command to those panels, too (a2dab12). Will come with next release.

2. No "Analyze" for fields
   There is no reason why it shouldn't be possible to analyze fields like any other type member. It was just a bug. Fixed it with e44dda1, will come with next release.

3. Navigation and context in decompiled code
   This is a more difficult topic. You're right, actually we just open a document tab and show the decompiled code as text, at least letting VS Code apply some C# syntax highlighting. But there is no more context like for real C# files from a loaded project. In ILSpy such code analysis is directly integrated with its code editor component, while in VS Code you would need support from an additional language server in background. Microsoft's C# language server doesn't analyze our document tabs and we have no own language server doing such a task, yet.