Can't start application on edge

[flop]

Since a9b72fb, I can't start application on rails edge.

rails-731923d79e0b/actionpack/lib/action_view/path_set.rb:38:in `block in typecast!': uninitialized constant 
ActionView::PathSet::OptimizedFileSystemResolver (NameError)

in actionpack/lib/action_view/path_set.rb

self[i] = OptimizedFileSystemResolver.new(path)

should be called with the correct module : ActionView::OptimizedFileSystemResolver