>>>
//GOOD: block body
test0a() {
  func1(() {
    print('foo');
    print('bar');
  });
}

//BAD: multiline expression body
test0b() => func1(() {
      print('foo');
      print('bar');
    });
<<<
//GOOD: block body
test0a() {
  func1(() {
    print('foo');
    print('bar');
  });
}

//BAD: multiline expression body
test0b() => func1(() {
  print('foo');
  print('bar');
});
>>>
test1a() {
  //GOOD: block body
  func1(() {
    func1(() {
      print('foo');
      print('bar');
    });
  });
}

test1b() {
  //BAD: multiline expression body
  func1(() => func1(() {
        print('foo');
        print('bar');
      }));
}

test1c() {
  //GOOD: multiline expression body if we insert an extra last comma in parma list
  func1(
    () => func1(() {
      print('foo');
      print('bar');
    }),
  );
}
<<<
test1a() {
  //GOOD: block body
  func1(() {
    func1(() {
      print('foo');
      print('bar');
    });
  });
}

test1b() {
  //BAD: multiline expression body
  func1(
    () => func1(() {
      print('foo');
      print('bar');
    }),
  );
}

test1c() {
  //GOOD: multiline expression body if we insert an extra last comma in parma list
  func1(
    () => func1(() {
      print('foo');
      print('bar');
    }),
  );
}
>>>
test2a() {
  //GOOD: block body
  func2(1, () {
    func1(() {
      print('foo');
    });
  });
}

test2b() {
  //GOOD: block body, add extra comma  in param list
  func2(
    1,
    () {
      func1(() {
        print('foo');
      });
    },
  );
}

test2c() {
  //BAD: multiline expression body, not only BAD indentation but also BAD new line
  func2(
      1,
      () => func1(() {
            print('foo');
          }));
}

test2d() {
  //GOOD: multiline expression body, add extra comma  in param list
  func2(
    1,
    () => func1(() {
      print('foo');
    }),
  );
}
<<<
test2a() {
  //GOOD: block body
  func2(1, () {
    func1(() {
      print('foo');
    });
  });
}

test2b() {
  //GOOD: block body, add extra comma  in param list
  func2(1, () {
    func1(() {
      print('foo');
    });
  });
}

test2c() {
  //BAD: multiline expression body, not only BAD indentation but also BAD new line
  func2(
    1,
    () => func1(() {
      print('foo');
    }),
  );
}

test2d() {
  //GOOD: multiline expression body, add extra comma  in param list
  func2(
    1,
    () => func1(() {
      print('foo');
    }),
  );
}