rails/rails — pull request #11192 by charliesome (2013-06-30 01:35:59+00:00)
Title: Store a symbol directly inside DISPATCH_CACHE for additional roflscale

`ActionDispatch::Journey::Visitors:Visitor::DISPATCH_CACHE` is used to cache visitor method names for performance reasons.

This pull request changes the hash's default proc so the hash directly stores method names. This avoids the extra hashtable lookup to convert the string into a symbol when its passed into `send` on lin 17.