dart2js: run dartfmt on tests

tests/compiler/dart2js/malformed_uri_test.dart

Index: tests/compiler/dart2js/malformed_uri_test.dart
diff --git a/tests/compiler/dart2js/malformed_uri_test.dart b/tests/compiler/dart2js/malformed_uri_test.dart
index 70ec4a641d642f65ef0a139035f0dfb3e157fa4a..f36bef00cb82991b4ba9ea564fae5accfaa3ab89 100644
--- a/tests/compiler/dart2js/malformed_uri_test.dart
+++ b/tests/compiler/dart2js/malformed_uri_test.dart
@@ -23,12 +23,11 @@ testMalformedUri() {
   asyncTest(() async {
     var collector = new DiagnosticCollector();
     await runCompiler(
-        memorySourceFiles: MEMORY_SOURCE_FILES,
-        diagnosticHandler: collector);
+        memorySourceFiles: MEMORY_SOURCE_FILES, diagnosticHandler: collector);
     Expect.equals(1, collector.errors.length);
   });
 }
 
 void main() {
   testMalformedUri();
-}
+}