Remove Compiler.commonElements

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

Index: pkg/compiler/lib/src/inferrer/node_tracer.dart
diff --git a/pkg/compiler/lib/src/inferrer/node_tracer.dart b/pkg/compiler/lib/src/inferrer/node_tracer.dart
index b30ae28563a0d665c971f998951a522aa04b2492..df7dd31a7ccb08f7a4ab8d2bc6e733daa5a8996f 100644
--- a/pkg/compiler/lib/src/inferrer/node_tracer.dart
+++ b/pkg/compiler/lib/src/inferrer/node_tracer.dart
@@ -406,7 +406,8 @@ abstract class TracerVisitor implements TypeInformationVisitor {
    */
   bool isParameterOfListAddingMethod(Element element) {
     if (!element.isRegularParameter) return false;
-    if (element.enclosingClass != compiler.commonElements.jsArrayClass) {
+    if (element.enclosingClass !=
+        inferrer.closedWorld.commonElements.jsArrayClass) {
       return false;
     }
     String name = element.enclosingElement.name;
@@ -420,7 +421,8 @@ abstract class TracerVisitor implements TypeInformationVisitor {
    */
   bool isParameterOfMapAddingMethod(Element element) {
     if (!element.isRegularParameter) return false;
-    if (element.enclosingClass != compiler.commonElements.mapLiteralClass) {
+    if (element.enclosingClass !=
+        inferrer.closedWorld.commonElements.mapLiteralClass) {
       return false;
     }
     String name = element.enclosingElement.name;