Assertion Failed: Unexpected SyntaxKind TupleType

**Version Used**:
Roslyn @ 8b77cf29e61476ce184687949c3c6bba3d33dcc0

**Steps to Reproduce**:
1. Point the C# extension to use a locally built Debug version of Roslyn at the above commit. See https://github.com/dotnet/vscode-csharp/blob/main/CONTRIBUTING.md#configuring-local-language-servers
2. Open Roslyn.slnx in vscode (C#+C#DK) using the configuration above, set background analysis to full solution. See https://github.com/dotnet/vscode-csharp/blob/main/SUPPORT.md#diagnostics-problems
3. Wait for the server to crash

It may crash at a different assertion. I've captured a dump of this stack here - https://onedrive.cloud.microsoft/:u:/a@ah78s6cf/S/IQBbyomEdH27TLH7YBVgRlpGAfw3xSb2Y723uqsMOHs9DFU?e=BGfT2U (windows)

**Expected Behavior**:

No assertion

**Actual Behavior**:

```
2026-01-26 16:22:04.070 [error] [stderr] Process terminated.
Assertion failed.
Unexpected SyntaxKind TupleType
at Microsoft.CodeAnalysis.CSharp.Binder.g__bindExpressionInternal|355_0(ExpressionSyntax node, BindingDiagnosticBag diagnostics, Boolean invoked, Boolean indexed) in Q:\src\roslyn\src\Compilers\CSharp\Portable\Binder\Binder_Expressions.cs:line 874
at Microsoft.CodeAnalysis.CSharp.Binder.BindExpressionInternal(ExpressionSyntax node, BindingDiagnosticBag diagnostics, Boolean invoked, Boolean indexed) in Q:\src\roslyn\src\Compilers\CSharp\Portable\Binder\Binder_Expressions.cs:line 618
at Microsoft.CodeAnalysis.CSharp.Binder.BindExpression(ExpressionSyntax node, BindingDiagnosticBag diagnostics, Boolean invoked, Boolean indexed) in Q:\src\roslyn\src\Compilers\CSharp\Portable\Binder\Binder_Expressions.cs:line 575
at Microsoft.CodeAnalysis.CSharp.Binder.BindExpression(ExpressionSyntax node, BindingDiagnosticBag diagnostics) in Q:\src\roslyn\src\Compilers\CSharp\Portable\Binder\Binder_Expressions.cs:line 570
at Microsoft.CodeAnalysis.CSharp.SyntaxTreeSemanticModel.GetSymbolInfoWorker(CSharpSyntaxNode node, SymbolInfoOptions options, CancellationToken cancellationToken) in Q:\src\roslyn\src\Compilers\CSharp\Portable\Compilation\SyntaxTreeSemanticModel.cs:line 233
at Microsoft.CodeAnalysis.CSharp.CSharpSemanticModel.GetSymbolInfo(ExpressionSyntax expression, CancellationToken cancellationToken) in Q:\src\roslyn\src\Compilers\CSharp\Portable\Compilation\CSharpSemanticModel.cs:line 576
at Microsoft.CodeAnalysis.CSharp.CSharpSemanticModel.GetDeclaredSymbol(TupleElementSyntax declarationSyntax, CancellationToken cancellationToken) in Q:\src\roslyn\src\Compilers\CSharp\Portable\Compilation\CSharpSemanticModel.cs:line 5212
at Microsoft.CodeAnalysis.CSharp.CSharpSemanticModel.GetDeclaredSymbolCore(SyntaxNode node, CancellationToken cancellationToken) in Q:\src\roslyn\src\Compilers\CSharp\Portable\Compilation\CSharpSemanticModel.cs:line 5168
at Microsoft.CodeAnalysis.SemanticModel.GetDeclaredSymbolForNode(SyntaxNode declaration, CancellationToken cancellationToken) in Q:\src\roslyn\src\Compilers\Core\Portable\Compilation\SemanticModel.cs:line 389
at Microsoft.CodeAnalysis.ModelExtensions.GetDeclaredSymbol(SemanticModel semanticModel, SyntaxNode declaration, CancellationToken cancellationToken) in Q:\src\roslyn\src\Compilers\Core\Portable\Compilation\Extensions.cs:line 131
at Microsoft.CodeAnalysis.Shared.Extensions.SemanticModelExtensions.GetAllDeclaredSymbols(SemanticModel semanticModel, SyntaxNode container, CancellationToken cancellationToken, Func`2 descendInto) in Q:\src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\Extensions\SemanticModelExtensions.cs:line 117
at Microsoft.CodeAnalysis.UseConditionalExpression.UseConditionalExpressionHelpers.CanConvert(ISyntaxFacts syntaxFacts, IConditionalOperation ifOperation, IOperation whenTrue, IOperation whenFalse, CancellationToken cancellationToken) in Q:\src\roslyn\src\Analyzers\Core\Analyzers\UseConditionalExpression\UseConditionalExpressionHelpers.cs:line 59
at Microsoft.CodeAnalysis.UseConditionalExpression.UseConditionalExpressionForReturnHelpers.TryMatchPattern(ISyntaxFacts syntaxFacts, IConditionalOperation ifOperation, ISymbol containingSymbol, CancellationToken cancellationToken, Boolean& isRef, IOperation& trueStatement, IOperation& falseStatement, IReturnOperation& trueReturn, IReturnOperation& falseReturn) in Q:\src\roslyn\src\Analyzers\Core\Analyzers\UseConditionalExpression\ForReturn\UseConditionalExpressionForReturnHelpers.cs:line 131
at Microsoft.CodeAnalysis.UseConditionalExpression.AbstractUseConditionalExpressionForReturnDiagnosticAnalyzer`1.TryMatchPattern(IConditionalOperation ifOperation, ISymbol containingSymbol, CancellationToken cancellationToken) in Q:\src\roslyn\src\Analyzers\Core\Analyzers\UseConditionalExpression\ForReturn\AbstractUseConditionalExpressionForReturnDiagnosticAnalyzer.cs:line 27
at Microsoft.CodeAnalysis.UseConditionalExpression.AbstractUseConditionalExpressionDiagnosticAnalyzer`1.AnalyzeOperation(OperationAnalysisContext context) in Q:\src\roslyn\src\Analyzers\Core\Analyzers\UseConditionalExpression\AbstractUseConditionalExpressionDiagnosticAnalyzer.cs:line 48
at Microsoft.CodeAnalysis.Diagnostics.AnalyzerExecutor.<>c.b__56_0(ValueTuple`2 data) in Q:\src\roslyn\src\Compilers\Core\Portable\DiagnosticAnalyzer\AnalyzerExecutor.cs:line 809
at Microsoft.CodeAnalysis.Diagnostics.AnalyzerExecutor.ExecuteAndCatchIfThrows_NoLock[TArg](DiagnosticAnalyzer analyzer, Action`1 analyze, TArg argument, Nullable`1 info, CancellationToken cancellationToken) in Q:\src\roslyn\src\Compilers\Core\Portable\DiagnosticAnalyzer\AnalyzerExecutor.cs:line 1338
at Microsoft.CodeAnalysis.Diagnostics.AnalyzerExecutor.ExecuteAndCatchIfThrows[TArg](DiagnosticAnalyzer analyzer, Action`1 analyze, TArg argument, Nullable`1 contextInfo, CancellationToken cancellationToken) in Q:\src\roslyn\src\Compilers\Core\Portable\DiagnosticAnalyzer\AnalyzerExecutor.cs:line 1319
at Microsoft.CodeAnalysis.Diagnostics.AnalyzerExecutor.ExecuteOperationAction(OperationAnalyzerAction operationAction, IOperation operation, ExecutionData executionData, Action`1 addDiagnostic, Func`3 isSupportedDiagnostic, CancellationToken cancellationToken) in Q:\src\roslyn\src\Compilers\Core\Portable\DiagnosticAnalyzer\AnalyzerExecutor.cs:line 807
at Microsoft.CodeAnalysis.Diagnostics.AnalyzerExecutor.ExecuteOperationActions(ImmutableArray`1 operationsToAnalyze, ImmutableSegmentedDictionary`2 operationActionsByKind, ExecutionData executionData, AnalyzerDiagnosticReporter diagReporter, Func`3 isSupportedDiagnostic, Boolean hasOperationBlockStartOrSymbolStartActions, CancellationToken cancellationToken) in Q:\src\roslyn\src\Compilers\Core\Portable\DiagnosticAnalyzer\AnalyzerExecutor.cs:line 1272
at Microsoft.CodeAnalysis.Diagnostics.AnalyzerExecutor.ExecuteOperationActions(ImmutableArray`1 operationsToAnalyze, ImmutableSegmentedDictionary`2 operationActionsByKind, DiagnosticAnalyzer analyzer, SemanticModel model, TextSpan spanForContainingOperationBlock, ISymbol declaredSymbol, Nullable`1 filterSpan, Boolean isGeneratedCode, Boolean hasOperationBlockStartOrSymbolStartActions, CancellationToken cancellationToken) in Q:\src\roslyn\src\Compilers\Core\Portable\DiagnosticAnalyzer\AnalyzerExecutor.cs:line 1231
at Microsoft.CodeAnalysis.Diagnostics.AnalyzerDriver`1.<>c__DisplayClass11_0.g__executeOperationsActionsByKind|5(ImmutableArray`1 operationsToAnalyze, GroupedAnalyzerActions groupedActions, Boolean arePerSymbolActions) in Q:\src\roslyn\src\Compilers\Core\Portable\DiagnosticAnalyzer\AnalyzerDriver.cs:line 2793
at Microsoft.CodeAnalysis.Diagnostics.AnalyzerDriver`1.<>c__DisplayClass11_0.g__executeOperationsActions|4(ImmutableArray`1 operationsToAnalyze) in Q:\src\roslyn\src\Compilers\Core\Portable\DiagnosticAnalyzer\AnalyzerDriver.cs:line 2769
at Microsoft.CodeAnalysis.Diagnostics.AnalyzerDriver`1.<>c__DisplayClass11_0.g__executeExecutableCodeActions|2() in Q:\src\roslyn\src\Compilers\Core\Portable\DiagnosticAnalyzer\AnalyzerDriver.cs:line 2726
at Microsoft.CodeAnalysis.Diagnostics.AnalyzerDriver`1.ExecuteDeclaringReferenceActions(SyntaxReference decl, SymbolDeclaredCompilationEvent symbolEvent, AnalysisScope analysisScope, GroupedAnalyzerActions coreActions, GroupedAnalyzerActions additionalPerSymbolActions, Boolean shouldExecuteSyntaxNodeActions, Boolean shouldExecuteOperationActions, Boolean shouldExecuteCodeBlockActions, Boolean shouldExecuteOperationBlockActions, Boolean isInGeneratedCode, CancellationToken cancellationToken) in Q:\src\roslyn\src\Compilers\Core\Portable\DiagnosticAnalyzer\AnalyzerDriver.cs:line 2610
at Microsoft.CodeAnalysis.Diagnostics.AnalyzerDriver`1.ExecuteDeclaringReferenceActions(SymbolDeclaredCompilationEvent symbolEvent, AnalysisScope analysisScope, Boolean isGeneratedCodeSymbol, IGroupedAnalyzerActions additionalPerSymbolActions, CancellationToken cancellationToken) in Q:\src\roslyn\src\Compilers\Core\Portable\DiagnosticAnalyzer\AnalyzerDriver.cs:line 2544
at Microsoft.CodeAnalysis.Diagnostics.AnalyzerDriver.TryProcessSymbolDeclaredAsync(SymbolDeclaredCompilationEvent symbolEvent, AnalysisScope analysisScope, CancellationToken cancellationToken) in Q:\src\roslyn\src\Compilers\Core\Portable\DiagnosticAnalyzer\AnalyzerDriver.cs:line 1783
at Microsoft.CodeAnalysis.Diagnostics.AnalyzerDriver.TryProcessSymbolDeclaredAsync(SymbolDeclaredCompilationEvent symbolEvent, AnalysisScope analysisScope, CancellationToken cancellationToken)
at Microsoft.CodeAnalysis.Diagnostics.AnalyzerDriver.TryProcessEventCoreAsync(CompilationEvent compilationEvent, AnalysisScope analysisScope, CancellationToken cancellationToken) in Q:\src\roslyn\src\Compilers\Core\Portable\DiagnosticAnalyzer\AnalyzerDriver.cs:line 1735
at Microsoft.CodeAnalysis.Diagnostics.AnalyzerDriver.TryProcessEventCoreAsync(CompilationEvent compilationEvent, AnalysisScope analysisScope, CancellationToken cancellationToken)
at Microsoft.CodeAnalysis.Diagnostics.AnalyzerDriver.ProcessEventAsync(CompilationEvent e, AnalysisScope analysisScope, CancellationToken cancellationToken) in Q:\src\roslyn\src\Compilers\Core\Portable\DiagnosticAnalyzer\AnalyzerDriver.cs:line 1646
at Microsoft.CodeAnalysis.Diagnostics.AnalyzerDriver.ProcessEventAsync(CompilationEvent e, AnalysisScope analysisScope, CancellationToken cancellationToken)
at Microsoft.CodeAnalysis.Diagnostics.AnalyzerDriver.ProcessCompilationEventsCoreAsync(AnalysisScope analysisScope, Boolean prePopulatedEventQueue, CancellationToken cancellationToken) in Q:\src\roslyn\src\Compilers\Core\Portable\DiagnosticAnalyzer\AnalyzerDriver.cs:line 1633
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.AsyncStateMachineBox`1.ExecutionContextCallback(Object s)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.AsyncStateMachineBox`1.MoveNext()
at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(IAsyncStateMachineBox box, Boolean allowInlining)
at System.Threading.Tasks.Task.RunContinuations(Object continuationObject)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.SetExistingTaskResult(Task`1 task, TResult result)
at Microsoft.CodeAnalysis.Diagnostics.AnalyzerDriver.ProcessEventAsync(CompilationEvent e, AnalysisScope analysisScope, CancellationToken cancellationToken) in Q:\src\roslyn\src\Compilers\Core\Portable\DiagnosticAnalyzer\AnalyzerDriver.cs:line 1664
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.AsyncStateMachineBox`1.MoveNext()
at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(IAsyncStateMachineBox box, Boolean allowInlining)
at System.Threading.Tasks.Task.RunContinuations(Object continuationObject)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.SetExistingTaskResult(Task`1 task, TResult result)
at Microsoft.CodeAnalysis.Diagnostics.AnalyzerDriver.TryProcessEventCoreAsync(CompilationEvent compilationEvent, AnalysisScope analysisScope, CancellationToken cancellationToken) in Q:\src\roslyn\src\Compilers\Core\Portable\DiagnosticAnalyzer\AnalyzerDriver.cs:line 1752
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.AsyncStateMachineBox`1.ExecutionContextCallback(Object s)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.AsyncStateMachineBox`1.MoveNext()
at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(IAsyncStateMachineBox box, Boolean allowInlining)
at System.Threading.Tasks.Task.RunContinuations(Object continuationObject)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.SetExistingTaskResult(Task`1 task, TResult result)
at Microsoft.CodeAnalysis.Diagnostics.AnalyzerDriver.TryProcessSymbolDeclaredAsync(SymbolDeclaredCompilationEvent symbolEvent, AnalysisScope analysisScope, CancellationToken cancellationToken) in Q:\src\roslyn\src\Compilers\Core\Portable\DiagnosticAnalyzer\AnalyzerDriver.cs:line 1794
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.AsyncStateMachineBox`1.ExecutionContextCallback(Object s)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.AsyncStateMachineBox`1.MoveNext()
at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(IAsyncStateMachineBox box, Boolean allowInlining)
at System.Threading.Tasks.Task.RunContinuations(Object continuationObject)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.SetExistingTaskResult(Task`1 task, TResult result)
at Microsoft.CodeAnalysis.Diagnostics.AnalyzerDriver.GetPerSymbolAnalyzerActionsAsync(ISymbol symbol, AnalysisScope analysisScope, CancellationToken cancellationToken) in Q:\src\roslyn\src\Compilers\Core\Portable\DiagnosticAnalyzer\AnalyzerDriver.cs:line 2147
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.AsyncStateMachineBox`1.ExecutionContextCallback(Object s)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.AsyncStateMachineBox`1.MoveNext()
at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(IAsyncStateMachineBox box, Boolean allowInlining)
at System.Threading.Tasks.Task.RunContinuations(Object continuationObject)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.SetExistingTaskResult(Task`1 task, TResult result)
at Microsoft.CodeAnalysis.Diagnostics.AnalyzerDriver.GetPerSymbolAnalyzerActionsAsync(ISymbol symbol, DiagnosticAnalyzer analyzer, SyntaxTree filterTree, Nullable`1 filterSpan, CancellationToken cancellationToken) in Q:\src\roslyn\src\Compilers\Core\Portable\DiagnosticAnalyzer\AnalyzerDriver.cs:line 2237
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.AsyncStateMachineBox`1.ExecutionContextCallback(Object s)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.AsyncStateMachineBox`1.MoveNext()
at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(IAsyncStateMachineBox box, Boolean allowInlining)
at System.Threading.Tasks.Task.RunContinuations(Object continuationObject)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.SetExistingTaskResult(Task`1 task, TResult result)
at Microsoft.CodeAnalysis.Diagnostics.AnalyzerDriver.g__getAllActionsAsync|154_0(AnalyzerDriver driver, ISymbol symbol, DiagnosticAnalyzer analyzer, SyntaxTree filterTree, Nullable`1 filterSpan, CancellationToken cancellationToken) in Q:\src\roslyn\src\Compilers\Core\Portable\DiagnosticAnalyzer\AnalyzerDriver.cs:line 2196
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.AsyncStateMachineBox`1.ExecutionContextCallback(Object s)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.AsyncStateMachineBox`1.MoveNext()
at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(IAsyncStateMachineBox box, Boolean allowInlining)
at System.Threading.Tasks.Task.RunContinuations(Object continuationObject)
at System.Threading.Tasks.Task`1.TrySetResult(TResult result)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.SetExistingTaskResult(Task`1 task, TResult result)
at System.Runtime.CompilerServices.AsyncValueTaskMethodBuilder`1.SetResult(TResult result)
at Microsoft.CodeAnalysis.Diagnostics.AnalyzerDriver.g__getSymbolActionsCoreAsync|154_2(AnalyzerDriver driver, ISymbol symbol, DiagnosticAnalyzer analyzer, SyntaxTree filterTree, Nullable`1 filterSpan, CancellationToken cancellationToken) in Q:\src\roslyn\src\Compilers\Core\Portable\DiagnosticAnalyzer\AnalyzerDriver.cs:line 2236
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.AsyncStateMachineBox`1.ExecutionContextCallback(Object s)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.AsyncStateMachineBox`1.MoveNext(Thread threadPoolThread)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.AsyncStateMachineBox`1.MoveNext()
at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(IAsyncStateMachineBox box, Boolean allowInlining)
at System.Threading.Tasks.Task.RunContinuations(Object continuationObject)
at System.Threading.Tasks.Task`1.TrySetResult(TResult result)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.SetExistingTaskResult(Task`1 task, TResult result)
at System.Runtime.CompilerServices.AsyncValueTaskMethodBuilder`1.SetResult(TResult result)
at Microsoft.CodeAnalysis.Diagnostics.AnalyzerManager.GetPerSymbolAnalyzerActionsAsync(ISymbol symbol, Boolean isGeneratedCodeSymbol, SyntaxTree filterTree, Nullable`1 filterSpan, DiagnosticAnalyzer analyzer, AnalyzerExecutor analyzerExecutor, CancellationToken cancellationToken) in Q:\src\roslyn\src\Compilers\Core\Portable\DiagnosticAnalyzer\AnalyzerManager.cs:line 230
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.AsyncStateMachineBox`1.ExecutionContextCallback(Object s)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.AsyncStateMachineBox`1.MoveNext(Thread threadPoolThread)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.AsyncStateMachineBox`1.MoveNext()
at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(IAsyncStateMachineBox box, Boolean allowInlining)
at System.Threading.Tasks.Task.RunContinuations(Object continuationObject)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.SetExistingTaskResult(Task`1 task, TResult result)
at Microsoft.CodeAnalysis.Diagnostics.AnalyzerManager.GetSymbolAnalysisScopeAsync(ISymbol symbol, Boolean isGeneratedCodeSymbol, SyntaxTree filterTree, Nullable`1 filterSpan, DiagnosticAnalyzer analyzer, ImmutableArray`1 symbolStartActions, AnalyzerExecutor analyzerExecutor, CancellationToken cancellationToken) in Q:\src\roslyn\src\Compilers\Core\Portable\DiagnosticAnalyzer\AnalyzerManager.cs:line 104
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.AsyncStateMachineBox`1.ExecutionContextCallback(Object s)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.AsyncStateMachineBox`1.MoveNext()
at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(IAsyncStateMachineBox box, Boolean allowInlining)
at System.Threading.Tasks.Task.RunContinuations(Object continuationObject)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.SetExistingTaskResult(Task`1 task, TResult result)
at Microsoft.CodeAnalysis.Diagnostics.AnalyzerManager.GetSymbolAnalysisScopeCoreAsync(ISymbol symbol, Boolean isGeneratedCodeSymbol, SyntaxTree filterTree, Nullable`1 filterSpan, ImmutableArray`1 symbolStartActions, AnalyzerExecutor analyzerExecutor, AnalyzerExecutionContext analyzerExecutionContext, CancellationToken cancellationToken) in Q:\src\roslyn\src\Compilers\Core\Portable\DiagnosticAnalyzer\AnalyzerManager.cs:line 129
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.AsyncStateMachineBox`1.ExecutionContextCallback(Object s)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.AsyncStateMachineBox`1.MoveNext()
at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(IAsyncStateMachineBox box, Boolean allowInlining)
at System.Threading.Tasks.Task.RunContinuations(Object continuationObject)
at System.Threading.Tasks.Task.FinishSlow(Boolean userDelegateExecute)
at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot, Thread threadPoolThread)
at System.Threading.ThreadPoolWorkQueue.Dispatch()
at System.Threading.PortableThreadPool.WorkerThread.WorkerThreadStart()
at System.Threading.Thread.StartCallback()
```