>>>
class Foo {
  Foo(int longArg1, int longArg2, int longArg3, int longArg4, int longArg5,
      int longArg6) : this._(longArg1);

  Foo._(int a);
}
<<<
class Foo {
  Foo(int longArg1, int longArg2, int longArg3, int longArg4, int longArg5,
      int longArg6)
      : this._(longArg1);

  Foo._(int a);
}