[Proposal] Simplified ldftn/ldvirtftn

Hi Lucas!

I would like to propose simplified way to use ldftn and ldvirtftn instructions:

public static void Ldftn<TMethod>(TMethod method) where TMethod : Delegate;
public static void Ldvirtftn<TMethod>(TMethod method) where TMethod : Delegate;

With these methods I can specify method directly without construction of MethodRef. In case of ldvirtftn it easily to analyze whether the specified method is virtual/abstract or not.

Alternative approach is to use factory method declared in MethodRef class:

public static MethodRef Create<TMethod>(TMethod method) where TMethod : Delegate;

[ltrzesniewski]

I got it mostly implemented in the methodref-delegate branch. I just need to make sure I didn’t forget anything, and maybe do some cleanup. I should release it soon.

I changed one thing though: referencing a compiler-generated method will generate an error instead of a warning. After seeing what the C# compiler generates for the various cases, I realized there’s really no good way to use such a method in a sane way.

[ltrzesniewski]

I suppose I can add a warning for these cases, mostly to prevent unintentional misuse.

You can suppress InlineIL warnings through the weaver config.