adding required attribute

src/EditorFeatures/CSharpTest/EditAndContinue/EditSessionTests.cs

@@ -183,7 +183,7 @@ private static string InspectActiveStatementAndInstruction(ActiveStatement state
         private static string GetFirstLineText(LinePositionSpan span, SourceText text)
             => text.Lines[span.Start.Line].ToString().Trim();
 
-        [Fact]
+        [Fact, UseExportProvider]
         public async Task BaseActiveStatementsAndExceptionRegions1()
         {
             var markedSource = new[]
@@ -364,7 +364,7 @@ LinePositionSpan AddDelta(LinePositionSpan span, int lineDelta)
             }, activeStatementsInUpdatedMethods.Select(v => $"thread={v.ThreadId} {v.OldInstructionId.GetDebuggerDisplay()}: {v.NewSpan}"));
         }
 
-        [Fact, WorkItem(24439, "https://github.com/dotnet/roslyn/issues/24439")]
+        [Fact, UseExportProvider, WorkItem(24439, "https://github.com/dotnet/roslyn/issues/24439")]
         public async Task BaseActiveStatementsAndExceptionRegions2()
         {
             var baseSource =
@@ -464,7 +464,7 @@ static void F2()
             }, activeStatementsInUpdatedMethods.Select(v => $"thread={v.ThreadId} {v.OldInstructionId.GetDebuggerDisplay()}: {v.NewSpan} '{GetFirstLineText(v.NewSpan, updatedText)}'"));
         }
 
-        [Fact]
+        [Fact, UseExportProvider]
         public async Task BaseActiveStatementsAndExceptionRegions_WithInitialNonRemappableRegions()
         {
             var markedSourceV1 =
@@ -653,7 +653,7 @@ static void F4()
             }, activeStatementsInUpdatedMethods.Select(v => $"thread={v.ThreadId} {v.OldInstructionId.GetDebuggerDisplay()}: {v.NewSpan} '{GetFirstLineText(v.NewSpan, sourceTextV3)}'"));
         }
 
-        [Fact]
+        [Fact, UseExportProvider]
         public async Task BaseActiveStatementsAndExceptionRegions_Recursion()
         {
             var markedSource = new[]
@@ -734,7 +734,7 @@ static void F()
             }, baseExceptionRegions.Select(r => "[" + string.Join(",", r.Spans) + "]"));
         }
 
-        [Fact, WorkItem(24320, "https://github.com/dotnet/roslyn/issues/24320")]
+        [Fact, UseExportProvider, WorkItem(24320, "https://github.com/dotnet/roslyn/issues/24320")]
         public async Task BaseActiveStatementsAndExceptionRegions_LinkedDocuments()
         {
             var markedSource = new[]