Update the pdb writer availability check

[victorhurdugaci]

Can you please make this change aspnet/dnx@142b73e in MVC too. Without it, Razor compilation fails on downlevel (Win7/Win2008R2, CoreCLR).

You get this:

CompilationFailedException: Compilation for 'C:\inetpub\approot\src\MusicStore\Views\Home\Index.cshtml' failed:
error CS0041: Unexpected error writing debug information -- 'Retrieving the COM class factory for component with CLSID {0AE2DEB0-F901-478B-BB9F-881EE8066788} failed due to the following error: 80070057 The parameter is incorrect. (Exception from HRESULT: 0x80070057 (E_INVALIDARG)).'
Microsoft.AspNet.Mvc.Razor.CompilationResult.get_CompiledType()

Stack Query Cookies Headers Environment
CompilationFailedException: Compilation for 'C:\inetpub\approot\src\MusicStore\Views\Home\Index.cshtml' failed: error CS0041: Unexpected error writing debug information -- 'Retrieving the COM class factory for component with CLSID {0AE2DEB0-F901-478B-BB9F-881EE8066788} failed due to the following error: 80070057 The parameter is incorrect. (Exception from HRESULT: 0x80070057 (E_INVALIDARG)).'
Microsoft.AspNet.Mvc.Razor.CompilationResult.get_CompiledType()
Microsoft.AspNet.Mvc.Razor.CompilerCache.OnCacheMiss(RelativeFileInfo file, Boolean isInstrumented, Func`1 compile)
Microsoft.AspNet.Mvc.Razor.CompilerCache.GetOrAdd(RelativeFileInfo fileInfo, Boolean enableInstrumentation, Func`1 compile)
Microsoft.AspNet.Mvc.Razor.VirtualPathRazorPageFactory.CreateInstance(String relativePath)
Microsoft.AspNet.Mvc.Razor.RazorViewEngine.LocateViewFromViewLocations(ActionContext context, String viewName, Boolean partial)
Microsoft.AspNet.Mvc.Rendering.CompositeViewEngine.FindView(ActionContext context, String viewName, Boolean partial)
Microsoft.AspNet.Mvc.ViewResult.<ExecuteResultAsync>d__1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
Microsoft.AspNet.Mvc.FilterActionInvoker.<InvokeActionResult>d__1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
Microsoft.AspNet.Mvc.FilterActionInvoker.<InvokeActionResultFilter>d__1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
Microsoft.AspNet.Mvc.FilterActionInvoker.<InvokeActionResultWithFilters>d__1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
Microsoft.AspNet.Mvc.FilterActionInvoker.<InvokeAsync>d__1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
Microsoft.AspNet.Mvc.ControllerActionInvoker.<InvokeAsync>d__1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
Microsoft.AspNet.Mvc.MvcRouteHandler.<RouteAsync>d__1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
Microsoft.AspNet.Routing.Template.TemplateRoute.<RouteAsync>d__1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
Microsoft.AspNet.Routing.RouteCollection.<RouteAsync>d__1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
Microsoft.AspNet.Builder.RouterMiddleware.<Invoke>d__1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
Microsoft.AspNet.Security.Infrastructure.AuthenticationMiddleware`1.<Invoke>d__1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
Microsoft.AspNet.Security.Infrastructure.AuthenticationMiddleware`1.<Invoke>d__1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
Microsoft.AspNet.Security.Infrastructure.AuthenticationMiddleware`1.<Invoke>d__1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
Microsoft.AspNet.Security.Infrastructure.AuthenticationMiddleware`1.<Invoke>d__1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
Microsoft.AspNet.Security.Infrastructure.AuthenticationMiddleware`1.<Invoke>d__1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
Microsoft.AspNet.Security.Infrastructure.AuthenticationMiddleware`1.<Invoke>d__1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
Microsoft.AspNet.Security.Infrastructure.AuthenticationMiddleware`1.<Invoke>d__1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
Microsoft.AspNet.Security.Infrastructure.AuthenticationMiddleware`1.<Invoke>d__1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
Microsoft.AspNet.Builder.Extensions.MapMiddleware.<Invoke>d__1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
Microsoft.AspNet.Diagnostics.ErrorPageMiddleware.<Invoke>d__1.MoveNext()

cc @pranavkm @davidfowl

[yishaigalatzer]

Fixed