Split TypeSystem.typeInformations into member/parameter info

pkg/compiler/lib/src/inferrer/inferrer_engine.dart

Index: pkg/compiler/lib/src/inferrer/inferrer_engine.dart
diff --git a/pkg/compiler/lib/src/inferrer/inferrer_engine.dart b/pkg/compiler/lib/src/inferrer/inferrer_engine.dart
index 0932afc8b2f22397a1c6bada782e55ca589e733d..466fa9457a56ae8846cdfa9865e264e569609095 100644
--- a/pkg/compiler/lib/src/inferrer/inferrer_engine.dart
+++ b/pkg/compiler/lib/src/inferrer/inferrer_engine.dart
@@ -621,7 +621,7 @@ class InferrerEngine {
   }
 
   void buildWorkQueue() {
-    workQueue.addAll(types.typeInformations.values);
+    workQueue.addAll(types.orderedTypeInformations);
     workQueue.addAll(types.allocatedTypes);
     workQueue.addAll(types.allocatedClosures);
     workQueue.addAll(types.allocatedCalls);
@@ -1037,7 +1037,8 @@ class InferrerEngine {
 
     defaultTypeOfParameter.clear();
 
-    types.typeInformations.values.forEach(cleanup);
+    types.parameterTypeInformations.values.forEach(cleanup);
+    types.memberTypeInformations.values.forEach(cleanup);
 
     types.allocatedTypes.forEach(cleanup);
     types.allocatedTypes.clear();