System.Exception: Actual and expected items don't match:
Expected: foo
Actual: Internal error in the expression evaluator.
at Roslyn.VSHosting.Test.Utilities.CompareAndThrowIfNotEqual[TItem](TItem expected, TItem actual) in C:\Users\paulv\Documents\GitHub\roslyn-internal\Closed\Hosting\Test\Actions\VisualStudio\Utilities\Utilities.cs:line 15
at Roslyn.VSHosting.Test.RoslynActions.DebugAction.Evaluate(String expression, String expectedResult) in C:\Users\paulv\Documents\GitHub\roslyn-internal\Closed\Hosting\RoslynTaoActions\Actions\VisualStudio\DebugAction.cs:line 264
When running the test on Dev15 preview 5: