dart2js: fix warning in test

pkg/compiler/lib/src/dump_info.dart

Index: pkg/compiler/lib/src/dump_info.dart
diff --git a/pkg/compiler/lib/src/dump_info.dart b/pkg/compiler/lib/src/dump_info.dart
index ab526160688ad33b0d6985c7bbe9e63975de48b5..0f9c123637a1f752233871ad7b8a4eb43d64e7e5 100644
--- a/pkg/compiler/lib/src/dump_info.dart
+++ b/pkg/compiler/lib/src/dump_info.dart
@@ -479,7 +479,7 @@ class DumpInfoTask extends CompilerTask {
 
     // Track dependencies that come from inlining.
     for (Element element in inlineMap.keys) {
-      Info outerInfo = infoCollector._elementToInfo[element];
+      CodeInfo outerInfo = infoCollector._elementToInfo[element];
       if (outerInfo == null) continue;
       for (Element inlined in inlineMap[element]) {
         Info inlinedInfo = infoCollector._elementToInfo[inlined];