Pages should trim quotes from route templates

[rynowak]

This page (HelloWorldWithRoute.cshtml):

@page "Some/Path/{text}"

Hello, @(ViewContext.RouteData.Values["text"])!

produces the route template HelloWorldWithRoute/"Some/Path/{text}". The quotes should not be present in the route template.

As a workaround I'm removing the quotes from the page, but this workaround shouldn't be allowed by Razor at all.

[pranavkm]

Here's the corresponding Razor work item: aspnet/Razor#980