dart2js: run dartfmt on tests

tests/compiler/dart2js/is_inference2_test.dart

Index: tests/compiler/dart2js/is_inference2_test.dart
diff --git a/tests/compiler/dart2js/is_inference2_test.dart b/tests/compiler/dart2js/is_inference2_test.dart
index 3e3e6ea436f23c6d7bc1a618d83caa68109a69d5..9177a11e57175eb9427eb719edd4e819cf1c1673 100644
--- a/tests/compiler/dart2js/is_inference2_test.dart
+++ b/tests/compiler/dart2js/is_inference2_test.dart
@@ -15,10 +15,10 @@ negate(x) {
 
 main() {
   asyncTest(() => compile(TEST_IF_BOOL_FIRST_INSTRUCTION, entry: 'negate',
-      check: (String generated) {
-    Expect.isTrue(generated.contains("!"));  // We want to see !x.
-    Expect.isFalse(generated.contains("!="));  // And not !== true.
-    Expect.isFalse(generated.contains("true"));
-    Expect.isFalse(generated.contains("false"));
-  }));
+          check: (String generated) {
+        Expect.isTrue(generated.contains("!")); // We want to see !x.
+        Expect.isFalse(generated.contains("!=")); // And not !== true.
+        Expect.isFalse(generated.contains("true"));
+        Expect.isFalse(generated.contains("false"));
+      }));
 }