Disable failing IntelliSense integration tests

See #43627

src/VisualStudio/IntegrationTest/IntegrationTests/CSharp/CSharpAutomaticBraceCompletion.cs

@@ -640,7 +640,8 @@ class C
 assertCaretPosition: true);
         }
 
-        [WpfTheory, CombinatorialData, Trait(Traits.Feature, Traits.Features.AutomaticCompletion)]
+        [WpfTheory(Skip = "https://github.com/dotnet/roslyn/issues/43627")]
+        [CombinatorialData, Trait(Traits.Feature, Traits.Features.AutomaticCompletion)]
         [Trait(Traits.Feature, Traits.Features.CompleteStatement)]
         [WorkItem(18104, "https://github.com/dotnet/roslyn/issues/18104")]
         public void CompleteStatementTriggersCompletion(bool showCompletionInArgumentLists)

src/VisualStudio/IntegrationTest/IntegrationTests/CSharp/CSharpIntelliSense.cs

@@ -47,7 +47,8 @@ public void AtNamespaceLevel(bool showCompletionInArgumentLists)
             VisualStudio.Editor.Verify.CurrentLineText("using$$", assertCaretPosition: true);
         }
 
-        [WpfTheory, CombinatorialData, Trait(Traits.Feature, Traits.Features.Completion)]
+        [WpfTheory(Skip = "https://github.com/dotnet/roslyn/issues/43627")]
+        [CombinatorialData, Trait(Traits.Feature, Traits.Features.Completion)]
         public void SpeculativeTInList(bool showCompletionInArgumentLists)
         {
             SetUpEditor(@"
@@ -104,7 +105,8 @@ public static class NavigateTo
             VisualStudio.Editor.Verify.CurrentLineText("NavigateTo.Search$$", assertCaretPosition: true);
         }
 
-        [WpfTheory, CombinatorialData, Trait(Traits.Feature, Traits.Features.Completion)]
+        [WpfTheory(Skip = "https://github.com/dotnet/roslyn/issues/43627")]
+        [CombinatorialData, Trait(Traits.Feature, Traits.Features.Completion)]
         public void CtrlAltSpace(bool showCompletionInArgumentLists)
         {
             VisualStudio.Workspace.SetTriggerCompletionInArgumentLists(showCompletionInArgumentLists);
@@ -154,7 +156,8 @@ public void CtrlAltSpace(bool showCompletionInArgumentLists)
             VisualStudio.Editor.Verify.CurrentLineText("System.Console.writeline();$$", assertCaretPosition: true);
         }
 
-        [WpfTheory, CombinatorialData, Trait(Traits.Feature, Traits.Features.Completion)]
+        [WpfTheory(Skip = "https://github.com/dotnet/roslyn/issues/43627")]
+        [CombinatorialData, Trait(Traits.Feature, Traits.Features.Completion)]
         public void CtrlAltSpaceOption(bool showCompletionInArgumentLists)
         {
             VisualStudio.Workspace.SetTriggerCompletionInArgumentLists(showCompletionInArgumentLists);