Cover the qualification suggestions the fix offers alongside the opens

The tests filtered the suggestions down to the opens, so what the fix
offers for qualifying the name in place went unasserted — including that
three of them is where the list stops.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

Author: xperiandri

vsintegration/tests/FSharp.Editor.Tests/CodeFixes/AddOpenOnTopOnTests.fs

@@ -11,12 +11,14 @@ open CodeFixTestFramework
 
 let private codeFix = AddOpenCodeFixProvider(AssemblyContentProvider())
 
-/// Every `open` suggestion the fix offers, in the order the lightbulb lists them.
+/// Everything the fix offers, in the order the lightbulb lists it: the opens, then the qualifications.
+let private allFixes code mode =
+    codeFix |> multiFix code mode |> Seq.toList
+
+/// Just the `open` suggestions, for the tests that are about where the declaration lands.
 let private openFixes code mode =
-    codeFix
-    |> multiFix code mode
-    |> Seq.filter (fun fix -> fix.Message.StartsWith("open ", StringComparison.Ordinal))
-    |> Seq.toList
+    allFixes code mode
+    |> List.filter (fun fix -> fix.Message.StartsWith("open ", StringComparison.Ordinal))
 
 [<Fact>]
 let ``Fixes FS0039 for missing opens - basic`` () =
@@ -529,6 +531,29 @@ let readFile () = File.ReadAllText "example.txt"
 
     Assert.Equal<TestCodeFix list>(expected, actual)
 
+[<Fact>] // Qualifying the name in place is offered alongside opening what holds it
+let ``Offers qualifying the name after the opens`` () =
+    let code =
+        """module Module1
+
+let readFile () = File.ReadAllText "example.txt"
+"""
+
+    let expected =
+        [
+            "open System.IO"
+            "open type System.Net.WebRequestMethods"
+            // Qualifications, three of them at most, `System.IO.File` twice over because the type and
+            // the member being reached through it are both candidates.
+            "System.IO.File"
+            "System.IO.File.ReadAllText"
+            "System.Net.WebRequestMethods.File"
+        ]
+
+    let actual = allFixes code Auto |> List.map _.Message
+
+    Assert.Equal<string list>(expected, actual)
+
 [<Fact>] // `WriteLine` is a static member of four different types, `System` ones offered first
 let ``Offers every type a static member can be resolved from`` () =
     let code =