fixes #202, check IndexExpression

test/dart_codegen/expect/collection/linked_hash_map.dart

Index: test/dart_codegen/expect/collection/linked_hash_map.dart
diff --git a/test/dart_codegen/expect/collection/linked_hash_map.dart b/test/dart_codegen/expect/collection/linked_hash_map.dart
index 44ed580052d75bee305d3aa3894289fcec096563..b6e8d5dae47683045dc0db5161a6bb84c7e3f2fb 100644
--- a/test/dart_codegen/expect/collection/linked_hash_map.dart
+++ b/test/dart_codegen/expect/collection/linked_hash_map.dart
@@ -6,7 +6,7 @@ part of dart.collection;
  factory LinkedHashMap.from(Map other) {
   LinkedHashMap<K, V> result = new LinkedHashMap<K, V>();
    other.forEach((k, v) {
-    result[k] = DEVC$RT.cast(v, dynamic, V, "CompositeCast", """line 74, column 40 of dart:collection/linked_hash_map.dart: """, v is V, false);
+    result[DEVC$RT.cast(k, dynamic, K, "CompositeCast", """line 74, column 35 of dart:collection/linked_hash_map.dart: """, k is K, false)] = DEVC$RT.cast(v, dynamic, V, "CompositeCast", """line 74, column 40 of dart:collection/linked_hash_map.dart: """, v is V, false);
     }
   );
    return result;