swift234

Allow a property to overload a function.

It's fairly common in Cocoa applications to do something like:

  var tableView: NSTableView
  func tableView(sender: NSTableView, shouldDoSomething: Int) { }

where the base name of a method is the same as the name of a
property. We lost this ability when I turned on redeclaration
checking, so bring it back <rdar://problem/16746894>.

Swift SVN r16996