Format all tests.

tests/language/regress_23046_test.dart

Index: tests/language/regress_23046_test.dart
diff --git a/tests/language/regress_23046_test.dart b/tests/language/regress_23046_test.dart
index cb7b84a04581d87f3c6d5beab0f4b524af6b9853..e5dcdc480a25d185ceae4cfa975af7e3b80d4154 100644
--- a/tests/language/regress_23046_test.dart
+++ b/tests/language/regress_23046_test.dart
@@ -9,7 +9,7 @@ import "package:expect/expect.dart";
 
 const String x = '$y"';
 const String y = 'foo';
-const Map m = const { x: 0, y: 1 };
+const Map m = const {x: 0, y: 1};
 
 main() {
   Expect.equals(x, 'foo"');