Error parsing nullable arrays in switch patterns

[jaredpar]

Consider the following code

#nullable enable
using System;
public class C {
    public object field;
    public void M() {
    }
    
    string Prop => field switch
    {
        string?[] arr => "a"
    };
}

This parses in 3.10 but fails in 4.0. Likely this is a regression introduced when we changed lambda parsing.

DevDiv tracking issue: https://dev.azure.com/devdiv/DevDiv/_workitems/edit/1359655/

[cston]

FIxed in #55044.

[kevinchalet]

👋🏻

Do we know whether the fix shipped as part of the .NET 6.0 preview7 tooling? I'm still seeing this error so I'm tempted to say "no", but just in case... 😄

[cston]

@kevinchalet, it looks like commit ebbae5b was not merged in time to be included in .NET 6.0 preview 7. The fix should be included the next preview.

[kevinchalet]

Excellent, thanks @cston!