clang-format: Improve linebreaking and indentation for ObjC calls.

Before:
  popup_wdow_.reset([[RenderWidgetPopupWindow alloc]
      iniithContentRect:
          NSMakRet(origin_global.x, origin_global.y, pos.width(), pos.height())
                syeMask:NSBorderlessWindowMask
                  bking:NSBackingStoreBuffered
                    der:NO]);
  [self param:function( //
      parameter)]

After:
  popup_wdow_.reset([[RenderWidgetPopupWindow alloc]
      iniithContentRect:NSMakRet(origin_global.x, origin_global.y, pos.width(),
                                 pos.height())
                syeMask:NSBorderlessWindowMask
                  bking:NSBackingStoreBuffered
                    der:NO]);
  [self param:function( //
                  parameter)]

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194267 91177308-0d34-0410-b5e6-96231b3b80d8
clang-format: Don't auto-break short macros in WebKit style.

This fixes llvm.org/PR17842.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194268 91177308-0d34-0410-b5e6-96231b3b80d8