Quarantine a couple more tests

[dougbu]

What's broken info:

System.IO.IOException : Unable to read data from the transport connection: Broken pipe.
---- System.Net.Sockets.SocketException : Broken pipe
   at Microsoft.AspNetCore.Server.Kestrel.FunctionalTests.MaxRequestBufferSizeTests.<>c__DisplayClass4_0.<<LargeUpload>b__0>d.MoveNext() in /_/src/Servers/Kestrel/test/FunctionalTests/MaxRequestBufferSizeTests.cs:line 141
--- End of stack trace from previous location ---
   at Microsoft.AspNetCore.Server.Kestrel.FunctionalTests.MaxRequestBufferSizeTests.LargeUpload(Nullable`1 maxRequestBufferSize, Boolean connectionAdapter, Boolean expectPause) in /_/src/Servers/Kestrel/test/FunctionalTests/MaxRequestBufferSizeTests.cs:line 190
--- End of stack trace from previous location ---
----- Inner Stack Trace -----
   at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.CreateException(SocketError error, Boolean forAsyncThrow)
   at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.SendAsyncForNetworkStream(Socket socket, CancellationToken cancellationToken)
   at System.Net.Sockets.Socket.SendAsyncForNetworkStream(ReadOnlyMemory`1 buffer, SocketFlags socketFlags, CancellationToken cancellationToken)
   at System.Net.Sockets.NetworkStream.WriteAsync(Byte[] buffer, Int32 offset, Int32 size, CancellationToken cancellationToken)
   at Microsoft.AspNetCore.Server.Kestrel.FunctionalTests.MaxRequestBufferSizeTests.<>c__DisplayClass4_0.<<LargeUpload>b__0>d.MoveNext() in /_/src/Servers/Kestrel/test/FunctionalTests/MaxRequestBufferSizeTests.cs:line 141
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[TStateMachine](TStateMachine& stateMachine)
   at Microsoft.AspNetCore.Server.Kestrel.FunctionalTests.MaxRequestBufferSizeTests.<>c__DisplayClass4_0.<LargeUpload>b__0()
   at Microsoft.AspNetCore.Server.Kestrel.FunctionalTests.MaxRequestBufferSizeTests.LargeUpload(Nullable`1 maxRequestBufferSize, Boolean connectionAdapter, Boolean expectPause) in /_/src/Servers/Kestrel/test/FunctionalTests/MaxRequestBufferSizeTests.cs:line 150
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.AsyncStateMachineBox`1.MoveNext(Thread threadPoolThread)
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot, Thread threadPoolThread)
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
--- End of stack trace from previous location ---

System.NullReferenceException : Object reference not set to an instance of an object.
   at Microsoft.CodeAnalysis.MetadataHelpers.GetInfoForImmediateNamespaceMembers(Boolean isGlobalNamespace, Int32 namespaceNameLength, IEnumerable`1 typesByNS, StringComparer nameComparer, IEnumerable`1& types, IEnumerable`1& namespaces)
   at Microsoft.CodeAnalysis.CSharp.Symbols.Metadata.PE.PENamespaceSymbol.LoadAllMembers(IEnumerable`1 typesByNS)
   at Microsoft.CodeAnalysis.CSharp.Symbols.Metadata.PE.PENestedNamespaceSymbol.EnsureAllMembersLoaded()
   at Microsoft.CodeAnalysis.CSharp.Symbols.Metadata.PE.PENamespaceSymbol.GetMembers(String name)
   at Microsoft.CodeAnalysis.CSharp.Symbols.NamespaceSymbol.LookupNestedNamespace(ImmutableArray`1 names)
   at Microsoft.CodeAnalysis.CSharp.Symbols.NonMissingModuleSymbol.LookupTopLevelMetadataType(MetadataTypeName& emittedName)
   at Microsoft.CodeAnalysis.CSharp.Symbols.NonMissingAssemblySymbol.LookupTopLevelMetadataTypeWithCycleDetection(MetadataTypeName& emittedName, ConsList`1 visitedAssemblies, Boolean digThroughForwardedTypes)
   at Microsoft.CodeAnalysis.CSharp.Symbols.AssemblySymbol.GetTopLevelTypeByMetadataName(AssemblySymbol assembly, MetadataTypeName& metadataName, AssemblyIdentity assemblyOpt)
   at Microsoft.CodeAnalysis.CSharp.Symbols.AssemblySymbol.GetTopLevelTypeByMetadataName(MetadataTypeName& metadataName, AssemblyIdentity assemblyOpt, Boolean includeReferences, Boolean isWellKnownType, ValueTuple`2& conflicts, DiagnosticBag warnings, Boolean ignoreCorLibraryDuplicatedTypes)
   at Microsoft.CodeAnalysis.CSharp.Symbols.AssemblySymbol.GetTypeByMetadataName(String metadataName, Boolean includeReferences, Boolean isWellKnownType, ValueTuple`2& conflicts, Boolean useCLSCompliantNameArityEncoding, DiagnosticBag warnings, Boolean ignoreCorLibraryDuplicatedTypes)
   at Microsoft.CodeAnalysis.CSharp.CSharpCompilation.GetWellKnownType(WellKnownType type)
   at Microsoft.CodeAnalysis.CSharp.Symbols.SourceAssemblySymbol.ReportDiagnosticsForSynthesizedAttributes(CSharpCompilation compilation, DiagnosticBag diagnostics)
   at Microsoft.CodeAnalysis.CSharp.Symbols.SourceAssemblySymbol.ValidateAttributeSemantics(DiagnosticBag diagnostics)
   at Microsoft.CodeAnalysis.CSharp.Symbols.SourceAssemblySymbol.ForceComplete(SourceLocation locationOpt, CancellationToken cancellationToken)
   at Microsoft.CodeAnalysis.CSharp.CSharpCompilation.GetSourceDeclarationDiagnostics(SyntaxTree syntaxTree, Nullable`1 filterSpanWithinTree, Func`4 locationFilterOpt, CancellationToken cancellationToken)
   at Microsoft.CodeAnalysis.CSharp.CSharpCompilation.GetDiagnostics(CompilationStage stage, Boolean includeEarlierStages, DiagnosticBag diagnostics, CancellationToken cancellationToken)
   at Microsoft.CodeAnalysis.CSharp.CSharpCompilation.GetDiagnostics(CancellationToken cancellationToken)
   at Microsoft.CodeAnalysis.Diagnostics.CompilationWithAnalyzers.GetAllDiagnosticsWithoutStateTrackingAsync(ImmutableArray`1 analyzers, CancellationToken cancellationToken)
   at Microsoft.CodeAnalysis.Diagnostics.CompilationWithAnalyzers.GetAllDiagnosticsAsync(CancellationToken cancellationToken)
   at Microsoft.AspNetCore.Analyzer.Testing.DiagnosticVerifier.GetDiagnosticsAsync(Document[] documents, DiagnosticAnalyzer analyzer, String[] additionalEnabledDiagnostics) in /_/src/Analyzers/Microsoft.AspNetCore.Analyzer.Testing/src/DiagnosticVerifier.cs:line 98
   at Internal.AspNetCore.Analyzers.Tests.PubternabilityAnalyzerTests.DefinitionOfPubternalCrossAssemblyProducesPUB0002(String member) in /_/src/Analyzers/Internal.AspNetCore.Analyzers/test/PubternabilityAnalyzerTests.cs:line 145
--- End of stack trace from previous location ---

[dougbu]

Not much more info in the Helix logs though the specific failed tests are clearer:

LargeUpload(maxRequestBufferSize: 9223372036854775807, connectionAdapter: True, expectPause: False) [FAIL]

Internal.AspNetCore.Analyzers.Tests.PubternabilityAnalyzerTests.DefinitionOfPubternalCrossAssemblyProducesPUB0002(member: "public /*MM*/C c;") [FAIL]