Fix argument names for handleIndexedExpression.

pkg/front_end/lib/src/fasta/kernel/body_builder.dart

Index: pkg/front_end/lib/src/fasta/kernel/body_builder.dart
diff --git a/pkg/front_end/lib/src/fasta/kernel/body_builder.dart b/pkg/front_end/lib/src/fasta/kernel/body_builder.dart
index c2a08c383001d48c9b5992f104f61618fa789673..268e1b6f2a22d9a4312a13e7bad2b002303c984a 100644
--- a/pkg/front_end/lib/src/fasta/kernel/body_builder.dart
+++ b/pkg/front_end/lib/src/fasta/kernel/body_builder.dart
@@ -1895,16 +1895,16 @@ class BodyBuilder extends ScopeListener<JumpTarget> implements BuilderHelper {
 
   @override
   void handleIndexedExpression(
-      Token openCurlyBracket, Token closeCurlyBracket) {
+      Token openSquareBracket, Token closeSquareBracket) {
     debugEvent("IndexedExpression");
     Expression index = popForValue();
     var receiver = pop();
     if (receiver is ThisAccessor && receiver.isSuper) {
-      push(new SuperIndexAccessor(this, openCurlyBracket, index,
+      push(new SuperIndexAccessor(this, openSquareBracket, index,
           lookupSuperMember(indexGetName), lookupSuperMember(indexSetName)));
     } else {
       push(IndexAccessor.make(
-          this, openCurlyBracket, toValue(receiver), index, null, null));
+          this, openSquareBracket, toValue(receiver), index, null, null));
     }
   }