update lazy assignment operators

pkg/front_end/test/scanner_fasta_test.dart

Index: pkg/front_end/test/scanner_fasta_test.dart
diff --git a/pkg/front_end/test/scanner_fasta_test.dart b/pkg/front_end/test/scanner_fasta_test.dart
index 9404a293ef8fdd24a9dbc46fc056dfc4a7871469..7102359f10d7da4fe3a7eb46606f29144774cb76 100644
--- a/pkg/front_end/test/scanner_fasta_test.dart
+++ b/pkg/front_end/test/scanner_fasta_test.dart
@@ -30,8 +30,7 @@ class ScannerTest_Fasta extends ScannerTestBase {
       bool lazyAssignmentOperators: false}) {
     var scanner = new fasta.StringScanner(source,
         includeComments: true,
-        scanGenericMethodComments: genericMethodComments,
-        scanLazyAssignmentOperators: lazyAssignmentOperators);
+        scanGenericMethodComments: genericMethodComments);
     var token = scanner.tokenize();
     return new ToAnalyzerTokenStreamConverter_WithListener(listener)
         .convertTokens(token);