dart2js: add visitors and parsing support to infos

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 0eac0a9e6b906e2c3822bc568ae886af68d04b83..ab526160688ad33b0d6985c7bbe9e63975de48b5 100644
--- a/pkg/compiler/lib/src/dump_info.dart
+++ b/pkg/compiler/lib/src/dump_info.dart
@@ -479,12 +479,12 @@ class DumpInfoTask extends CompilerTask {
 
     // Track dependencies that come from inlining.
     for (Element element in inlineMap.keys) {
-      FunctionInfo functionInfo = infoCollector._elementToInfo[element];
-      if (functionInfo == null) continue;
-      for (Element held in inlineMap[element]) {
-        Info heldInfo = infoCollector._elementToInfo[held];
-        if (heldInfo == null) continue;
-        functionInfo.uses.add(new DependencyInfo(heldInfo, 'inlined'));
+      Info outerInfo = infoCollector._elementToInfo[element];

[Siggi Cherem (dart-lang), 2015/08/11 16:16:43]

oops - I noticed this error while testing things out in checked mode, and so I
included it with this same CL without realizing it. Turns out this added a
warning to dart2js, so I sent a follow up CL fixing it.

+      if (outerInfo == null) continue;
+      for (Element inlined in inlineMap[element]) {
+        Info inlinedInfo = infoCollector._elementToInfo[inlined];
+        if (inlinedInfo == null) continue;
+        outerInfo.uses.add(new DependencyInfo(inlinedInfo, 'inlined'));
       }
     }