Object initializers do not allow fieldlike events

[gafter]

Reproduce using the following test (already in Roslyn, but Skipped)

[Fact]
public void ObjectInitializerFieldlikeEvent()
{
var source = @"
public delegate void D();
public struct MemberInitializerTest
{
public event D z;
public static void Main()
{
var i = new MemberInitializerTest() { z = null };
}
}";
var compVerifier = CompileAndVerify(source, expectedOutput: "");
}

EXPECTED: test passes

ACTUAL:
error CS1913: Member 'z' cannot be initialized. It is not a field or property.

Migrated from TFS/DevDiv 529272

[gafter]

According to the spec

An object initializer consists of a sequence of member initializers, enclosed by { and } tokens and separated by commas. Each member_initializer designates a target for the initialization. An identifier must name an accessible field or property of the object being initialized

As you can see, fieldlike events are not supported by the language spec.

We are now taking language feature discussion on https://github.com/dotnet/csharplang for C# specific issues, https://github.com/dotnet/vblang for VB-specific features, and https://github.com/dotnet/csharplang for features that affect both languages.

If you are still interested in this issue (I note that there have been zero comments since its initial posting), please open an issue on the appropriate repo.

See also #18002 for a general discussion of closing and/or moving language issues out of this repo.