Add a comment to test to clarify the intention here

Comment is taken from the commit message of r151080, by Jean-Daniel Dupas


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172332 91177308-0d34-0410-b5e6-96231b3b80d8
Formatter: Prefer breaking before ObjC selector names over breaking at their ':'

Before:
  if ((self = [super initWithContentRect:contentRect styleMask:
                  styleMask backing:NSBackingStoreBuffered defer:YES])) {

Now:
  if ((self = [super initWithContentRect:contentRect styleMask:styleMask
                  backing:NSBackingStoreBuffered defer:YES])) {




git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172333 91177308-0d34-0410-b5e6-96231b3b80d8
Formatter: Remove debugging junk I accidentally landed in r172333.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172334 91177308-0d34-0410-b5e6-96231b3b80d8