Add test plan for file-scoped namespace (#54003)

docs/Language Feature Status.md

@@ -13,7 +13,7 @@ efforts behind them.
 | [Record structs](https://github.com/dotnet/csharplang/issues/4334) | [record-structs](https://github.com/dotnet/roslyn/tree/features/record-structs) | [In Progress](https://github.com/dotnet/roslyn/issues/51199) | [jcouv](https://github.com/jcouv) | [AlekseyTs](https://github.com/AlekseyTs), [RikkiGibson](https://github.com/RikkiGibson) | [jcouv](https://github.com/jcouv) |
 | [Global Using Directive](https://github.com/dotnet/csharplang/issues/3428) | [GlobalUsingDirective](https://github.com/dotnet/roslyn/tree/features/GlobalUsingDirective) | [In Progress](https://github.com/dotnet/roslyn/issues/51307) | [AlekseyTs](https://github.com/AlekseyTs) | [333fred](https://github.com/333fred), [cston](https://github.com/cston) | [AlekseyTs](https://github.com/AlekseyTs) |
 | [Static Abstract Members In Interfaces](https://github.com/dotnet/csharplang/issues/4436) | [StaticAbstractMembersInInterfaces](https://github.com/dotnet/roslyn/tree/features/StaticAbstractMembersInInterfaces) | [In Progress](https://github.com/dotnet/roslyn/issues/52221) | [AlekseyTs](https://github.com/AlekseyTs) | [333fred](https://github.com/333fred), [RikkiGibson](https://github.com/RikkiGibson) | [MadsTorgersen](https://github.com/MadsTorgersen) |
-| [File-scoped namespace](https://github.com/dotnet/csharplang/issues/137) | [FileScopedNamespaces](https://github.com/dotnet/roslyn/tree/features/FileScopedNamespaces) | In Progress | [RikkiGibson](https://github.com/RikkiGibson) | [jcouv](https://github.com/jcouv), [chsienki](https://github.com/chsienki) | [CyrusNajmabadi](https://github.com/CyrusNajmabadi) |
+| [File-scoped namespace](https://github.com/dotnet/csharplang/issues/137) | [FileScopedNamespaces](https://github.com/dotnet/roslyn/tree/features/FileScopedNamespaces) | [In Progress](https://github.com/dotnet/roslyn/issues/49000) | [RikkiGibson](https://github.com/RikkiGibson) | [jcouv](https://github.com/jcouv), [chsienki](https://github.com/chsienki) | [CyrusNajmabadi](https://github.com/CyrusNajmabadi) |
 | [Interpolated string improvements](https://github.com/dotnet/csharplang/issues/4487) | [interpolated-string](https://github.com/dotnet/roslyn/tree/features/interpolated-string) | [In Progress](https://github.com/dotnet/roslyn/issues/51499) | [333fred](https://github.com/333fred) | [AlekseyTs](https://github.com/AlekseyTs), [chsienki](https://github.com/chsienki) | [jaredpar](https://github.com/jaredpar) |
 | [Parameterless struct constructors](https://github.com/dotnet/csharplang/issues/99) | [struct-ctors](https://github.com/dotnet/roslyn/tree/features/struct-ctors) | [In Progress](https://github.com/dotnet/roslyn/issues/51698) | [cston](https://github.com/cston) | [jcouv](https://github.com/jcouv), [333fred](https://github.com/333fred) | [jcouv](https://github.com/jouv) |
 | [Lambda improvements](https://github.com/dotnet/csharplang/blob/main/proposals/lambda-improvements.md) | [lambdas](https://github.com/dotnet/roslyn/tree/features/lambdas) | [In Progress](https://github.com/dotnet/roslyn/issues/52192) | [cston](https://github.com/cston) | [333fred](https://github.com/333fred), [jcouv](https://github.com/jcouv) | [jaredpar](https://github.com/jaredpar) |