Add release notes for #16268 fix and add trailing newline to test file

Co-authored-by: T-Gro <46543583+T-Gro@users.noreply.github.com>

Author: Copilot

docs/release-notes/.FSharp.Compiler.Service/11.0.100.md

@@ -57,6 +57,7 @@
 * Fix parser recovery, name resolution, and code completion for unfinished enum patterns ([PR #19708](https://github.com/dotnet/fsharp/pull/19708))
 * Parser: fix unexpected diagnostics in debug builds, improve error messages ([PR #19730](https://github.com/dotnet/fsharp/pull/19730))
 * Fix signature conformance: overloaded member with unit parameter `M(())` now matches sig `member M: unit -> unit`. ([Issue #19596](https://github.com/dotnet/fsharp/issues/19596), [PR #19615](https://github.com/dotnet/fsharp/pull/19615))
+* Fix semantic classification of `IDisposable` and other interface types in type-occurrence positions being incorrectly classified as `DisposableType` instead of `Interface`. ([Issue #16268](https://github.com/dotnet/fsharp/issues/16268), [PR #19809](https://github.com/dotnet/fsharp/pull/19809))
 
 ### Added
 

tests/FSharp.Compiler.ComponentTests/FSharpChecker/SemanticClassificationRegressions.fs

@@ -229,4 +229,4 @@ type MyClass() =
         iface
         |> Array.forall (fun c -> c.Type = SemanticClassificationType.Interface),
         sprintf "Expected IMyInterface on line 5 to be Interface, got: %A"
-            (iface |> Array.map (fun c -> c.Type)))
+            (iface |> Array.map (fun c -> c.Type)))