Format all tests.

tests/corelib/list_as_map_test.dart

Index: tests/corelib/list_as_map_test.dart
diff --git a/tests/corelib/list_as_map_test.dart b/tests/corelib/list_as_map_test.dart
index 51e637f0fde5bac5689c3854e35617dcd47316be..43524a205cd369d35fa42ea5d70cd452fed86504 100644
--- a/tests/corelib/list_as_map_test.dart
+++ b/tests/corelib/list_as_map_test.dart
@@ -47,12 +47,10 @@ void testConstAsMap(List list) {
 
   testListMapCorrespondence(list, map);
 
-  Expect.throws(() => map[0] = 499,
-                (e) => e is UnsupportedError);
-  Expect.throws(() => map.putIfAbsent(0, () => 499),
-                (e) => e is UnsupportedError);
-  Expect.throws(() => map.clear(),
-                (e) => e is UnsupportedError);
+  Expect.throws(() => map[0] = 499, (e) => e is UnsupportedError);
+  Expect.throws(
+      () => map.putIfAbsent(0, () => 499), (e) => e is UnsupportedError);
+  Expect.throws(() => map.clear(), (e) => e is UnsupportedError);
 }
 
 void testFixedAsMap(List list) {