Add 'scanGenericMethodComments' parameter to constructors and scan() functions.

pkg/front_end/lib/src/fasta/scanner/array_based_scanner.dart

Index: pkg/front_end/lib/src/fasta/scanner/array_based_scanner.dart
diff --git a/pkg/front_end/lib/src/fasta/scanner/array_based_scanner.dart b/pkg/front_end/lib/src/fasta/scanner/array_based_scanner.dart
index d20befaceab7705f8a695fc3405563c6cda32ca1..068a4bb990b18cd04299c179e563b73f6f2a03c2 100644
--- a/pkg/front_end/lib/src/fasta/scanner/array_based_scanner.dart
+++ b/pkg/front_end/lib/src/fasta/scanner/array_based_scanner.dart
@@ -33,8 +33,10 @@ import '../util/link.dart' show Link;
 abstract class ArrayBasedScanner extends AbstractScanner {
   bool hasErrors = false;
 
-  ArrayBasedScanner(bool includeComments, {int numberOfBytesHint})
-      : super(includeComments, numberOfBytesHint: numberOfBytesHint);
+  ArrayBasedScanner(bool includeComments, bool scanGenericMethodComments,
+      {int numberOfBytesHint})
+      : super(includeComments, scanGenericMethodComments,
+            numberOfBytesHint: numberOfBytesHint);
 
   /**
    * The stack of open groups, e.g [: { ... ( .. :]