[D-runtime] [D-Programming-Language/druntime] fc291c: Revert "Optimize array cast for equivalence"

[GitHub via D-runtime]

  Branch: refs/heads/revert-1478-patch-2
  Home:   https://github.com/D-Programming-Language/druntime
  Commit: fc291c337294bb554cbd3c09ac8cf19ec20d18c9
      https://github.com/D-Programming-Language/druntime/commit/fc291c337294bb554cbd3c09ac8cf19ec20d18c9
  Author: Martin Nowak <code at dawg.eu>
  Date:   2016-01-23 (Sat, 23 Jan 2016)

  Changed paths:
    M src/rt/arraycast.d

  Log Message:
  -----------
  Revert "Optimize array cast for equivalence"