test/splitting/arrows.stmt - dart_style - Git at Google

 40 columns                              |
 >>> do not split after "("
 doSomethingWithFn((argument) => functionBodyTooLong());
 <<<
 doSomethingWithFn((argument) =>
     functionBodyTooLong());
	40 columns \|
	>>> do not split after "("
	doSomethingWithFn((argument) => functionBodyTooLong());
	<<<
	doSomethingWithFn((argument) =>
	functionBodyTooLong());