unconstrained type parameter is null compiles when not targeting C# 8

[YairHalberstadt]

Version Used: VS 16.0.3

Steps to Reproduce:

Compile the following program with LangVersion set to 7.3

public class C {
    public bool M<T>(T t) {
        return t is null;
    }
}

Expected Behavior: Error: Cannot convert null to type parameter 'T' because it could be a non-nullable value type.

Actual Behavior: Compiles without error.

[jcouv]

Yes, the t is null should be gated on a language version. This was fixed in 16.1 (PR #34695)
I'll go ahead and close as fixed.
FYI @gafter

[YairHalberstadt]

I see it's a duplicate now - sorry about that. GitHub search is far from perfect.