[PATCH] [Polly] Added arcanist linters and cleaned errors and warnings

[Johannes Doerfert]

Hi simbuerg, grosser, sebpop,

  Arcanist (arc) will now always run linters before uploading any new
  commit to Phabricator. All errors/warnings (or their absence) will be
  shown in the web interface together with a explanation by the commiter
  (arcanist will ask the commiter if the build was not clean).

  The linters include:
    - clang-format
    - spelling check
    - permissions check (aka. chmod)
    - filename check
    - merge conflict marker check
  Note, that their scope is sometimes limited (see .arclint for
  details).

  This commit also fixes all errors and warnings these linters reported,
  namely:
    - spelling mistakes and typos
    - executable permissions for various text files

http://reviews.llvm.org/D4916

Files:
  .arcconfig
  .arclint
  CMakeLists.txt
  autoconf/configure.ac
  autoconf/configure.bak
  include/polly/Canonicalization.h
  include/polly/Config/config.h.cmake
  include/polly/Dependences.h
  include/polly/ScopPass.h
  include/polly/Support/GICHelper.h
  include/polly/Support/SCEVValidator.h
  include/polly/Support/ScopHelper.h
  lib/Analysis/ScopInfo.cpp
  lib/JSON/include/json/value.h
  lib/JSON/include/json/writer.h
  lib/Transform/CodePreparation.cpp
  test/Cloog/CodeGen/20120403-RHS-type-mismatch.ll
  test/Cloog/ambigous_schedule.ll
  test/Isl/CodeGen/20120403-RHS-type-mismatch.ll
  test/Makefile
  test/ScopInfo/Alias-0.ll
  test/ScopInfo/Alias-1.ll
  test/ScopInfo/Alias-2.ll
  test/ScopInfo/Alias-3.ll
  test/ScopInfo/Alias-4.ll
  test/ScopInfo/bug_2010_10_22.ll
  test/ScopInfo/bug_2011_1_5.ll
  test/ScopInfo/phi_not_grouped_at_top.ll
  test/ScopInfo/phi_with_invoke_edge.ll
  utils/check_format.sh
  www/video-js/video.js
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