Format the `with`-expression setter block on the same line

Question

How can I specify in an .editorconfig that there shouldn't be a newline before the setter block of a C# record's with-expression? In other words, this:

var foo = new Foo("abcd");
foo = foo with {
    Bar = "efgh"
};

public record Foo(string Bar);

instead of this:

var foo = new Foo("abcd");
foo = foo with
{
    Bar = "efgh"
};

public record Foo(string Bar);

Ideally, I would want that Visual Studio should also respect this value in the .editorconfig.

Answer 1

This is an open bug in Roslyn and is scheduled to be fixed in Visual Studio 16.9.