Repeats and fixes the changes landed & reverted as CL 1789553003.

tests/compiler/dart2js/backend_dart/dart_printer_test.dart

Index: tests/compiler/dart2js/backend_dart/dart_printer_test.dart
diff --git a/tests/compiler/dart2js/backend_dart/dart_printer_test.dart b/tests/compiler/dart2js/backend_dart/dart_printer_test.dart
index 88eabca90e31335e6e6e29eb99b50d0cddae809f..e3c52bc94ef2474193682222d0229bd516f24426 100644
--- a/tests/compiler/dart2js/backend_dart/dart_printer_test.dart
+++ b/tests/compiler/dart2js/backend_dart/dart_printer_test.dart
@@ -22,6 +22,7 @@ import 'package:compiler/src/io/source_file.dart';
 import 'package:compiler/src/string_validator.dart';
 import 'package:compiler/src/tree/tree.dart' show DartString;
 import 'package:compiler/src/tree/tree.dart' as tree;
+import '../options_helper.dart';
 
 /// For debugging the [AstBuilder] stack. Prints information about [x].
 void show(x) {
@@ -673,7 +674,7 @@ Expression parseExpression(String code) {
   Scanner scan = new Scanner(file);
   Token tok = scan.tokenize();
   AstBuilder builder = new AstBuilder();
-  Parser parser = new Parser(builder);
+  Parser parser = new Parser(builder, new MockParserOptions());
   tok = parser.parseExpression(tok);
   if (builder.stack.length != 1 || tok.kind != EOF_TOKEN) {
     throw "Parse error in $code";
@@ -685,7 +686,7 @@ Statement parseStatement(String code) {
   Scanner scan = new Scanner(file);
   Token tok = scan.tokenize();
   AstBuilder builder = new AstBuilder();
-  Parser parser = new Parser(builder);
+  Parser parser = new Parser(builder, new MockParserOptions());
   tok = parser.parseStatement(tok);
   if (builder.stack.length != 1 || tok.kind != EOF_TOKEN) {
     throw "Parse error in $code";