Split TypeSystem.typeInformations into member/parameter info

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

Index: pkg/compiler/lib/src/inferrer/type_graph_inferrer.dart
diff --git a/pkg/compiler/lib/src/inferrer/type_graph_inferrer.dart b/pkg/compiler/lib/src/inferrer/type_graph_inferrer.dart
index 58a31a491b7667e60d11bed3580cc093ef10c064..8be922b325a436c672ffc40ab76d22e2428d44dd 100644
--- a/pkg/compiler/lib/src/inferrer/type_graph_inferrer.dart
+++ b/pkg/compiler/lib/src/inferrer/type_graph_inferrer.dart
@@ -151,13 +151,6 @@ class TypeGraphInferrer implements TypesInferrer {
     return info.isCalledOnce();
   }
 
-  bool isParameterCalledOnce(ParameterElement element) {
-    if (compiler.disableTypeInference) return false;
-    MemberTypeInformation info =
-        inferrer.types.getInferredTypeOfParameter(element);
-    return info.isCalledOnce();
-  }
-
   void clear() {
     inferrer.clear();
   }