Format all tests.

tests/language_strong/const_map4_test.dart

Index: tests/language_strong/const_map4_test.dart
diff --git a/tests/language_strong/const_map4_test.dart b/tests/language_strong/const_map4_test.dart
index b263a2c40d206825df7f615df51a7e6931cebf0a..2198b6e12dbb2dc1e777f83840730f04423fb535 100644
--- a/tests/language_strong/const_map4_test.dart
+++ b/tests/language_strong/const_map4_test.dart
@@ -5,19 +5,19 @@
 import "package:expect/expect.dart";
 
 main() {
-    var a = {1: 'a', 2: 'b', 3: 'c'};
-    var b = {1: 'a', 2: 'b', 3: 'c'};
-    Expect.equals(false, a == b);
+  var a = {1: 'a', 2: 'b', 3: 'c'};
+  var b = {1: 'a', 2: 'b', 3: 'c'};
+  Expect.equals(false, a == b);
 
-    a = const {1: 'a', 2: 'b', 3: 'c'};
-    b = const {1: 'a', 2: 'b', 3: 'c'};
-    Expect.equals(true, a == b);
+  a = const {1: 'a', 2: 'b', 3: 'c'};
+  b = const {1: 'a', 2: 'b', 3: 'c'};
+  Expect.equals(true, a == b);
 
-    a = const <num,String>{1: 'a', 2: 'b', 3: 'c'};
-    b = const {1: 'a', 2: 'b', 3: 'c'};
-    Expect.equals(false, a == b);
+  a = const <num, String>{1: 'a', 2: 'b', 3: 'c'};
+  b = const {1: 'a', 2: 'b', 3: 'c'};
+  Expect.equals(false, a == b);
 
-    a = const <dynamic,dynamic>{1: 'a', 2: 'b', 3: 'c'};
-    b = const {1: 'a', 2: 'b', 3: 'c'};
-    Expect.equals(true, a == b);
+  a = const <dynamic, dynamic>{1: 'a', 2: 'b', 3: 'c'};
+  b = const {1: 'a', 2: 'b', 3: 'c'};
+  Expect.equals(true, a == b);
 }