Dont' need ConfigureAwait(true) in test code.

src/EditorFeatures/VisualBasicTest/CodeActions/Preview/PreviewTests.vb

@@ -83,7 +83,7 @@ Namespace Microsoft.CodeAnalysis.Editor.VisualBasic.UnitTests.CodeRefactorings
                 GetMainDocumentAndPreviews(workspace, document, previews)
 
                 ' The changed document comes first.
-                Dim preview = Await previews.TakeNextPreviewAsync().ConfigureAwait(True)
+                Dim preview = Await previews.TakeNextPreviewAsync()
                 Assert.NotNull(preview)
                 Assert.True(TypeOf preview Is IWpfDifferenceViewer)
                 Dim diffView = DirectCast(preview, IWpfDifferenceViewer)
@@ -92,7 +92,7 @@ Namespace Microsoft.CodeAnalysis.Editor.VisualBasic.UnitTests.CodeRefactorings
                 diffView.Close()
 
                 ' The added document comes next.
-                preview = Await previews.TakeNextPreviewAsync().ConfigureAwait(True)
+                preview = Await previews.TakeNextPreviewAsync()
                 Assert.NotNull(preview)
                 Assert.True(TypeOf preview Is IWpfDifferenceViewer)
                 diffView = DirectCast(preview, IWpfDifferenceViewer)
@@ -102,23 +102,23 @@ Namespace Microsoft.CodeAnalysis.Editor.VisualBasic.UnitTests.CodeRefactorings
                 diffView.Close()
 
                 ' Then comes the removed metadata reference.
-                preview = Await previews.TakeNextPreviewAsync().ConfigureAwait(True)
+                preview = Await previews.TakeNextPreviewAsync()
                 Assert.NotNull(preview)
                 Assert.True(TypeOf preview Is String)
                 text = DirectCast(preview, String)
                 Assert.Contains(s_removedMetadataReferenceDisplayName, text, StringComparison.Ordinal)
 
                 ' And finally the added project.
-                preview = Await previews.TakeNextPreviewAsync().ConfigureAwait(True)
+                preview = Await previews.TakeNextPreviewAsync()
                 Assert.NotNull(preview)
                 Assert.True(TypeOf preview Is String)
                 text = DirectCast(preview, String)
                 Assert.Contains(s_addedProjectName, text, StringComparison.Ordinal)
 
                 ' There are no more previews.
-                preview = Await previews.TakeNextPreviewAsync().ConfigureAwait(True)
+                preview = Await previews.TakeNextPreviewAsync()
                 Assert.Null(preview)
-                preview = Await previews.TakeNextPreviewAsync().ConfigureAwait(True)
+                preview = Await previews.TakeNextPreviewAsync()
                 Assert.Null(preview)
             End Using
         End Function
@@ -131,14 +131,14 @@ Namespace Microsoft.CodeAnalysis.Editor.VisualBasic.UnitTests.CodeRefactorings
                 GetMainDocumentAndPreviews(workspace, document, previews)
 
                 ' Should return preview that matches the preferred (added) project.
-                Dim preview = Await previews.TakeNextPreviewAsync(preferredProjectId:=s_addedProjectId).ConfigureAwait(True)
+                Dim preview = Await previews.TakeNextPreviewAsync(preferredProjectId:=s_addedProjectId)
                 Assert.NotNull(preview)
                 Assert.True(TypeOf preview Is String)
                 Dim text = DirectCast(preview, String)
                 Assert.Contains(s_addedProjectName, text, StringComparison.Ordinal)
 
                 ' Should return preview that matches the preferred (changed) document.
-                preview = Await previews.TakeNextPreviewAsync(preferredDocumentId:=document.Id).ConfigureAwait(True)
+                preview = Await previews.TakeNextPreviewAsync(preferredDocumentId:=document.Id)
                 Assert.NotNull(preview)
                 Assert.True(TypeOf preview Is IWpfDifferenceViewer)
                 Dim diffView = DirectCast(preview, IWpfDifferenceViewer)
@@ -147,7 +147,7 @@ Namespace Microsoft.CodeAnalysis.Editor.VisualBasic.UnitTests.CodeRefactorings
                 diffView.Close()
 
                 ' There is no longer a preview for the preferred project. Should return the first remaining preview.
-                preview = Await previews.TakeNextPreviewAsync(preferredProjectId:=s_addedProjectId).ConfigureAwait(True)
+                preview = Await previews.TakeNextPreviewAsync(preferredProjectId:=s_addedProjectId)
                 Assert.NotNull(preview)
                 Assert.True(TypeOf preview Is IWpfDifferenceViewer)
                 diffView = DirectCast(preview, IWpfDifferenceViewer)
@@ -157,16 +157,16 @@ Namespace Microsoft.CodeAnalysis.Editor.VisualBasic.UnitTests.CodeRefactorings
                 diffView.Close()
 
                 ' There is no longer a preview for the  preferred document. Should return the first remaining preview.
-                preview = Await previews.TakeNextPreviewAsync(preferredDocumentId:=document.Id).ConfigureAwait(True)
+                preview = Await previews.TakeNextPreviewAsync(preferredDocumentId:=document.Id)
                 Assert.NotNull(preview)
                 Assert.True(TypeOf preview Is String)
                 text = DirectCast(preview, String)
                 Assert.Contains(s_removedMetadataReferenceDisplayName, text, StringComparison.Ordinal)
 
                 ' There are no more previews.
-                preview = Await previews.TakeNextPreviewAsync().ConfigureAwait(True)
+                preview = Await previews.TakeNextPreviewAsync()
                 Assert.Null(preview)
-                preview = Await previews.TakeNextPreviewAsync().ConfigureAwait(True)
+                preview = Await previews.TakeNextPreviewAsync()
                 Assert.Null(preview)
             End Using
         End Function

src/EditorFeatures/VisualBasicTest/Diagnostics/GenerateType/GenerateTypeTests.vb

@@ -166,7 +166,7 @@ index:=1)
 NewLines("Imports System \n Imports System.Collections.Generic \n Imports System.Linq \n Class Program \n Sub Main() \n Call New Foo.[|Bar|]() \n End Sub \n End Class"),
 NewLines("Namespace Foo \n Friend Class Bar \n Public Sub New() \n End Sub \n End Class \n End Namespace"),
 expectedContainers:={"Foo"},
-expectedDocumentName:="Bar.vb").ConfigureAwait(True)
+expectedDocumentName:="Bar.vb")
         End Function
 
         <WpfFact, Trait(Traits.Feature, Traits.Features.CodeActionsGenerateType)>
@@ -175,7 +175,7 @@ expectedDocumentName:="Bar.vb").ConfigureAwait(True)
 NewLines("Imports System \n Imports System.Collections.Generic \n Imports System.Linq \n Module Program \n Sub Main(args As String()) \n Dim x As New [|Foo|] \n End Sub \n End Module"),
 NewLines("Friend Class Foo \n End Class"),
 expectedContainers:=Array.Empty(Of String)(),
-expectedDocumentName:="Foo.vb").ConfigureAwait(True)
+expectedDocumentName:="Foo.vb")
         End Function
 
         <WpfFact, Trait(Traits.Feature, Traits.Features.CodeActionsGenerateType)>
@@ -282,7 +282,7 @@ NewLines("Imports [|System|]"))
 NewLines("Class Base \n Sub Main \n Dim p = New [|Derived|]() \n End Sub \n End Class"),
 NewLines("Friend Class Derived \n Public Sub New() \n End Sub \n End Class"),
 expectedContainers:=Array.Empty(Of String)(),
-expectedDocumentName:="Derived.vb").ConfigureAwait(True)
+expectedDocumentName:="Derived.vb")
         End Function
 
         <WpfFact, Trait(Traits.Feature, Traits.Features.CodeActionsGenerateType)>

src/EditorFeatures/VisualBasicTest/LineCommit/CommitTestData.vb

@@ -137,7 +137,7 @@ Namespace Microsoft.CodeAnalysis.Editor.VisualBasic.UnitTests.LineCommit
                 End If
 
                 Dim realCommitFormatter As New CommitFormatter()
-                Await realCommitFormatter.CommitRegionAsync(spanToFormat, isExplicitFormat, useSemantics, dirtyRegion, baseSnapshot, baseTree, cancellationToken).ConfigureAwait(True)
+                Await realCommitFormatter.CommitRegionAsync(spanToFormat, isExplicitFormat, useSemantics, dirtyRegion, baseSnapshot, baseTree, cancellationToken)
             End Function
         End Class
     End Class

src/EditorFeatures/VisualBasicTest/Squiggles/ErrorSquiggleProducerTests.vb

@@ -17,20 +17,20 @@ Namespace Microsoft.CodeAnalysis.Editor.VisualBasic.UnitTests.Squiggles
 
         Private Async Function ProduceSquiggles(ParamArray lines As String()) As Task(Of IEnumerable(Of ITagSpan(Of IErrorTag)))
             Using workspace = VisualBasicWorkspaceFactory.CreateWorkspaceFromLines(lines)
-                Return Await GetErrorSpans(workspace).ConfigureAwait(True)
+                Return Await GetErrorSpans(workspace)
             End Using
         End Function
 
         Private Async Function ProduceSquiggles(analyzerMap As Dictionary(Of String, DiagnosticAnalyzer()), ParamArray lines As String()) As Task(Of IEnumerable(Of ITagSpan(Of IErrorTag)))
             Using workspace = VisualBasicWorkspaceFactory.CreateWorkspaceFromLines(lines)
-                Return Await GetErrorSpans(workspace, analyzerMap).ConfigureAwait(True)
+                Return Await GetErrorSpans(workspace, analyzerMap)
             End Using
         End Function
 
         <WpfFact, Trait(Traits.Feature, Traits.Features.ErrorSquiggles)>
         Public Async Sub ErrorTagGeneratedForSimpleError()
             ' Make sure we have errors from the tree
-            Dim spans = Await ProduceSquiggles("^").ConfigureAwait(True)
+            Dim spans = Await ProduceSquiggles("^")
             Assert.Equal(1, spans.Count())
 
             Dim firstSpan = spans.First()
@@ -39,7 +39,7 @@ Namespace Microsoft.CodeAnalysis.Editor.VisualBasic.UnitTests.Squiggles
 
         <WpfFact, Trait(Traits.Feature, Traits.Features.ErrorSquiggles)>
         Public Async Sub ArgOutOfRangeExceptionBug_904382()
-            Dim spans = Await ProduceSquiggles("Class C1", "Sub Foo(", "End Class").ConfigureAwait(True)
+            Dim spans = Await ProduceSquiggles("Class C1", "Sub Foo(", "End Class")
 
             'If the following line does not throw an exception then the test passes.
             Dim count = spans.Count
@@ -51,7 +51,7 @@ Namespace Microsoft.CodeAnalysis.Editor.VisualBasic.UnitTests.Squiggles
                                          "    Sub Foo()",
                                          "        Dim x = <xml>",
                                          "    End Sub",
-                                         "End Class").ConfigureAwait(True)
+                                         "End Class")
             Assert.Equal(5, spans.Count())
         End Sub
 
@@ -61,7 +61,7 @@ Namespace Microsoft.CodeAnalysis.Editor.VisualBasic.UnitTests.Squiggles
 "Class C1",
 "    Sub Foo(b as Bar)",
 "    End Sub",
-"End Class").ConfigureAwait(True)
+"End Class")
             Assert.Equal(1, spans.Count())
 
             Dim firstSpan = spans.First()
@@ -91,7 +91,7 @@ Class C1
     Sub Foo()
         Process.Start(GetType(Int32).ToString()) 'Int32 can be simplified.
     End Sub
-End Class").ConfigureAwait(True)).OrderBy(Function(s) s.Span.Span.Start).ToImmutableArray()
+End Class")).OrderBy(Function(s) s.Span.Span.Start).ToImmutableArray()
 
             Assert.Equal(2, spans.Length)
             Dim first = spans(0)