Fix argument names for handleIndexedExpression.

pkg/analyzer/lib/src/summary/fasta/summary_builder.dart

Index: pkg/analyzer/lib/src/summary/fasta/summary_builder.dart
diff --git a/pkg/analyzer/lib/src/summary/fasta/summary_builder.dart b/pkg/analyzer/lib/src/summary/fasta/summary_builder.dart
index d628a8ed4818dc435fb8cf08bb2c6a21aec7c048..4ab016cbff0523e5a0375585e6943870d2292e86 100644
--- a/pkg/analyzer/lib/src/summary/fasta/summary_builder.dart
+++ b/pkg/analyzer/lib/src/summary/fasta/summary_builder.dart
@@ -126,7 +126,8 @@ class ConstExpressionBuilder extends ExpressionListener {
     push(new Invalid(hint: "assign"));
   }
 
-  void handleIndexedExpression(Token openSquareBracket, Token token) {
+  void handleIndexedExpression(
+      Token openSquareBracket, Token closeSquareBracket) {
     debugEvent("Index");
     if (ignore) return;
     pop(); // receiver
@@ -651,7 +652,8 @@ class InitializerBuilder extends ExpressionListener {
     }
   }
 
-  void handleIndexedExpression(Token openSquareBracket, Token token) {
+  void handleIndexedExpression(
+      Token openSquareBracket, Token closeSquareBracket) {
     debugEvent("Index");
     if (ignore) return;
     pop();