aspnet/Mvc — pull request #1590 by NTaylorMullen (2014-11-19 00:12:52+00:00)
Title: React to aspnet/Razor#214 mvchook changes.

- We now utilize the new hook inside of `AddOrRemoveTagHelperSpanVisitor`.

Corresponding Razor PR: https://github.com/aspnet/Razor/pull/228

/cc @pranavkm