Pressing SHIFT+ENTER in Immediate window crashes editor

1. Start debugging and inside immediate window, put cursor at $$$ and press SHIFT+ENTER:

Services.ContainsKey(typeof(Microsoft.VisualStudio.Shell.Interop.SVsStartupProjectsListService));
error CS0433: The type 'SVsStartupProjectsListService' exists in both 'Microsoft.VisualStudio.ProjectSystem.Managed.VS.UnitTests, Version=42.42.42.42, Culture=neutral, PublicKeyToken=31bf3856ad364e35' and 'Microsoft.VisualStudio.ProjectSystem.Managed.VS, Version=42.42.42.42, Culture=neutral, PublicKeyToken=31bf3856ad364e35'
Services.ContainsKey(serviceType);
false
Services.ContainsKey(Services.First());
error CS1061: 'Dictionary<Type, object>' does not contain a definition for 'First' and no extension method 'First' accepting a first argument of type 'Dictionary<Type, object>' could be found (are you missing a using directive or an assembly reference?)
$$$Services.ContainsKey(Services.First());

System.NotSupportedException: Changing documents is not supported. at Microsoft.CodeAnalysis.Workspace.CheckAllowedProjectChanges(ProjectChanges projectChanges) 
at Microsoft.CodeAnalysis.Workspace.CheckAllowedSolutionChanges(SolutionChanges solutionChanges) 
at Microsoft.CodeAnalysis.Workspace.TryApplyChanges(Solution newSolution, IProgressTracker progressTracker) 
at Microsoft.CodeAnalysis.Workspace.TryApplyChanges(Solution newSolution) at Microsoft.CodeAnalysis.Editor.Implementation.AutomaticCompletion.Extensions.ApplyTextChanges(Document document, IEnumerable`1 textChanges, CancellationToken cancellationToken) 
at Microsoft.CodeAnalysis.Editor.CSharp.AutomaticCompletion.AutomaticLineEnderCommandHandler.FormatAndApply(Document document, Int32 position, CancellationToken cancellationToken) 
at Microsoft.CodeAnalysis.Editor.Implementation.AutomaticCompletion.AbstractAutomaticLineEnderCommandHandler.ExecuteCommand(AutomaticLineEnderCommandArgs args, Action nextHandler, CommandExecutionContext context) 
at Microsoft.VisualStudio.Commanding.CommandHandlerExtensions.ExecuteCommand[T](ICommandHandler commandHandler, T args, Action nextCommandHandler, CommandExecutionContext executionContext) 
at Microsoft.VisualStudio.UI.Text.Commanding.Implementation.EditorCommandHandlerService.<>c__DisplayClass14_1`1.<Execute>b__1() at Microsoft.VisualStudio.Text.Utilities.GuardedOperations.CallExtensionPoint(Object errorSource, Action call) 
--- End of stack trace from previous location where exception was thrown --- 
at Microsoft.VisualStudio.Telemetry.WindowsErrorReporting.WatsonReport.GetClrWatsonExceptionInfo(Exception exceptionObject)