Fix argument names for handleIndexedExpression.

pkg/front_end/lib/src/fasta/parser/listener.dart

Index: pkg/front_end/lib/src/fasta/parser/listener.dart
diff --git a/pkg/front_end/lib/src/fasta/parser/listener.dart b/pkg/front_end/lib/src/fasta/parser/listener.dart
index fb84787c65466e0b63a34cbc9d7e3446845da7bf..5bdf5e947c2462e07db4d2ebafbf4e100eae7f85 100644
--- a/pkg/front_end/lib/src/fasta/parser/listener.dart
+++ b/pkg/front_end/lib/src/fasta/parser/listener.dart
@@ -839,7 +839,7 @@ class Listener {
   }
 
   void handleIndexedExpression(
-      Token openCurlyBracket, Token closeCurlyBracket) {
+      Token openSquareBracket, Token closeSquareBracket) {
     logEvent("IndexedExpression");
   }