[analyzer] Move RetainReleaseChecker to the Checkers library and rename it to RetainCountChecker...and clean up the file while I'm at it.

llvm-svn: 139002
3 files changed
tree: cf52cfb977dfd161fc345a750310bad28565b2d6
  1. clang/
  2. compiler-rt/
  3. debuginfo-tests/
  4. libcxx/
  5. libcxxabi/
  6. lldb/
  7. llvm/
  8. polly/