dart2js: run dartfmt on tests

tests/compiler/dart2js_extra/lookup_map/discovered_code_test.dart

Index: tests/compiler/dart2js_extra/lookup_map/discovered_code_test.dart
diff --git a/tests/compiler/dart2js_extra/lookup_map/discovered_code_test.dart b/tests/compiler/dart2js_extra/lookup_map/discovered_code_test.dart
index a20af7318600b32a72c6dab92cec17296f85fee4..745b7e3e451db34c31b8f1717cf6800266b7e140 100644
--- a/tests/compiler/dart2js_extra/lookup_map/discovered_code_test.dart
+++ b/tests/compiler/dart2js_extra/lookup_map/discovered_code_test.dart
@@ -5,17 +5,27 @@
 import 'package:lookup_map/lookup_map.dart';
 import 'package:expect/expect.dart';
 
-class A{ A(B x);}
-class B{}
-class C{}
-class D{}
-class E{}
+class A {
+  A(B x);
+}
+
+class B {}
+
+class C {}
+
+class D {}
+
+class E {}
+
 createA() => new A(map[B][1]());
 createB() => new B();
 const map = const LookupMap(const [
-    A, const ["the-text-for-A", createA],
-    B, const ["the-text-for-B", createB],
-    C, const ["the-text-for-C"],
+  A,
+  const ["the-text-for-A", createA],
+  B,
+  const ["the-text-for-B", createB],
+  C,
+  const ["the-text-for-C"],
 ]);
 
 main() {