dart2js: run dartfmt on tests

tests/compiler/dart2js_extra/lookup_map/entries_aside_test.dart

Index: tests/compiler/dart2js_extra/lookup_map/entries_aside_test.dart
diff --git a/tests/compiler/dart2js_extra/lookup_map/entries_aside_test.dart b/tests/compiler/dart2js_extra/lookup_map/entries_aside_test.dart
index 6f7241892fc389c9b534b17b49f50c894af80d0b..af1204227884cf6518631c499420c8704a58072c 100644
--- a/tests/compiler/dart2js_extra/lookup_map/entries_aside_test.dart
+++ b/tests/compiler/dart2js_extra/lookup_map/entries_aside_test.dart
@@ -5,13 +5,12 @@
 import 'package:lookup_map/lookup_map.dart';
 import 'package:expect/expect.dart';
 
-class A{}
-class B{}
-const entries = const [
-  A, "the-text-for-A",
-  B, "the-text-for-B",
-];
-const map = const LookupMap(entries );
+class A {}
+
+class B {}
+
+const entries = const [A, "the-text-for-A", B, "the-text-for-B",];
+const map = const LookupMap(entries);
 
 main() {
   Expect.equals(map[A], 'the-text-for-A');