Fix argument names for handleIndexedExpression.

pkg/analyzer/lib/src/fasta/ast_builder.dart

Index: pkg/analyzer/lib/src/fasta/ast_builder.dart
diff --git a/pkg/analyzer/lib/src/fasta/ast_builder.dart b/pkg/analyzer/lib/src/fasta/ast_builder.dart
index 9ddc36948b1bcba7351c9d757cdeaa88ae1c9f6d..8867116f310978a321f6b5d383f3fe5725aeacee 100644
--- a/pkg/analyzer/lib/src/fasta/ast_builder.dart
+++ b/pkg/analyzer/lib/src/fasta/ast_builder.dart
@@ -1067,7 +1067,7 @@ class AstBuilder extends ScopeListener {
   }
 
   void handleIndexedExpression(
-      Token openCurlyBracket, Token closeCurlyBracket) {
+      Token openSquareBracket, Token closeSquareBracket) {
     debugEvent("IndexedExpression");
     Expression index = pop();
     Expression target = pop();
@@ -1076,12 +1076,12 @@ class AstBuilder extends ScopeListener {
       Token token = peek();
       push(receiver);
       IndexExpression expression = ast.indexExpressionForCascade(
-          token, openCurlyBracket, index, closeCurlyBracket);
+          token, openSquareBracket, index, closeSquareBracket);
       assert(expression.isCascaded);
       push(expression);
     } else {
       push(ast.indexExpressionForTarget(
-          target, openCurlyBracket, index, closeCurlyBracket));
+          target, openSquareBracket, index, closeSquareBracket));
     }
   }