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
diff --git a/lib/Format/ContinuationIndenter.cpp b/lib/Format/ContinuationIndenter.cpp
index d075c74..63232be 100644
--- a/lib/Format/ContinuationIndenter.cpp
+++ b/lib/Format/ContinuationIndenter.cpp
@@ -277,7 +277,7 @@
     // Treat the condition inside an if as if it was a second function
     // parameter, i.e. let nested calls have a continuation indent.
     State.Stack.back().LastSpace = State.Column + 1; // 1 is length of "(".
-  else if (Previous.is(tok::comma))
+  else if (Previous.is(tok::comma) || Previous.Type == TT_ObjCMethodExpr)
     State.Stack.back().LastSpace = State.Column;
   else if ((Previous.Type == TT_BinaryOperator ||
             Previous.Type == TT_ConditionalExpr ||