Poor formatting with flutter's Point constructor (WONTFIX)

[Hixie]

The following code:

      Point transformed = new Point(position.x - childParentData.offset.dx,
                                    position.y - childParentData.offset.dy);

...is carefully aligned so that you can see the parallels between the x and y coordinate of the point.
However, the formatter currently turns this into the following (wrapping at 100 cols):

      Point transformed =
          new Point(position.x - childParentData.offset.dx, position.y - childParentData.offset.dy);

This is less readable.

[Hixie]

Even with parents around the arguments, it doesn't get better:

  // -l 120
  Point transformed = new Point((position.x - childParentData.offset.dx), (position.y - childParentData.offset.dy));

  // -l 90
  Point transformed = new Point(
      (position.x - childParentData.offset.dx), (position.y - childParentData.offset.dy));

  // -l 80
  Point transformed = new Point((position.x - childParentData.offset.dx),
      (position.y - childParentData.offset.dy));

[Hixie]

I could work around this if I had a way to say "don't format this line", like the suggestion in #530:

      Point transformed = new Point(position.x - childParentData.offset.dx,    //
                                    position.y - childParentData.offset.dy);   //

[munificent]

Gated on whether or not we do any vertical alignment at all (#508).