Start a whitelist of methods those optionals should be treated as named formals in dart:html.

tests/html/fileapi_test.dart

Index: tests/html/fileapi_test.dart
diff --git a/tests/html/fileapi_test.dart b/tests/html/fileapi_test.dart
index f753b013def2a1bceedbebef89288f5c8387aa22..82aad86d6c7074747492cd90cf1fb3430beef33e 100644
--- a/tests/html/fileapi_test.dart
+++ b/tests/html/fileapi_test.dart
@@ -25,7 +25,6 @@ main() {
   group('getDirectory', () {
 
     test('directoryDoesntExist', () {
-      /* OPTIONALS
       fs.root.getDirectory(
           'directory2',
           options: {},
@@ -35,20 +34,9 @@ main() {
           errorCallback: expectAsync1((FileError e) {
             expect(e.code, equals(FileError.NOT_FOUND_ERR));
           }));
-      */
-      fs.root.getDirectory(
-          'directory2',
-          {},
-          (e) {
-            fail('Should not be reached');
-          },
-          expectAsync1((FileError e) {
-            expect(e.code, equals(FileError.NOT_FOUND_ERR));
-          }));
     });
 
     test('directoryCreate', () {
-      /* OPTIONALS
       fs.root.getDirectory(
           'directory3',
           options: {'create': true},
@@ -58,23 +46,12 @@ main() {
           errorCallback: (e) {
             fail('Got file error: ${e.code}');
           });
-      */
-      fs.root.getDirectory(
-          'directory3',
-          {'create': true},
-          expectAsync1((DirectoryEntry e) {
-            expect(e.name, equals('directory3'));
-          }),
-          (e) {
-            fail('Got file error: ${e.code}');
-          });
     });
   });
 
   group('getFile', () {
 
     test('fileDoesntExist', () {
-      /* OPTIONALS
       fs.root.getFile(
           'file2',
           options: {},
@@ -84,20 +61,9 @@ main() {
           errorCallback: expectAsync1((FileError e) {
             expect(e.code, equals(FileError.NOT_FOUND_ERR));
           }));
-      */
-      fs.root.getFile(
-          'file2',
-          {},
-          (e) {
-            fail('Should not be reached');
-          },
-          expectAsync1((FileError e) {
-            expect(e.code, equals(FileError.NOT_FOUND_ERR));
-          }));
     });
 
     test('fileCreate', () {
-      /* OPTIONALS
       fs.root.getFile(
           'file4',
           options: {'create': true},
@@ -109,17 +75,5 @@ main() {
             fail('Got file error: ${e.code}');
           });
       });
-      */
-      fs.root.getFile(
-          'file4',
-          {'create': true},
-          expectAsync1((FileEntry e) {
-            expect(e.name, equals('file4'));
-            expect(e.isFile, equals(true));
-          }),
-          (e) {
-            fail('Got file error: ${e.code}');
-          });
-      });
   });
 }