Format all tests.

tests/language_strong/integer_division_by_zero_test.dart

Index: tests/language_strong/integer_division_by_zero_test.dart
diff --git a/tests/language_strong/integer_division_by_zero_test.dart b/tests/language_strong/integer_division_by_zero_test.dart
index 98aab8c70d2d060c6a0fc3f6bc17f11a565e31ae..54fc9c85c2260b12d614ada9dc7b9f842de26c5d 100644
--- a/tests/language_strong/integer_division_by_zero_test.dart
+++ b/tests/language_strong/integer_division_by_zero_test.dart
@@ -10,6 +10,5 @@ import "package:expect/expect.dart";
 divBy0(a) => a ~/ 0;
 
 main() {
-  Expect.throws(() => divBy0(4),
-                (e) => e is IntegerDivisionByZeroException);
+  Expect.throws(() => divBy0(4), (e) => e is IntegerDivisionByZeroException);
 }