Add kernel/closed_world2_test

pkg/compiler/lib/src/compiler.dart

Index: pkg/compiler/lib/src/compiler.dart
diff --git a/pkg/compiler/lib/src/compiler.dart b/pkg/compiler/lib/src/compiler.dart
index 157804d8d47f06eba501bde55bbe0fb0e57c9b9d..ba57653a7c998ceef954ab3d04cfb35e1fa68a1c 100644
--- a/pkg/compiler/lib/src/compiler.dart
+++ b/pkg/compiler/lib/src/compiler.dart
@@ -1716,7 +1716,7 @@ class CompilerResolution implements Resolution {
   WorldImpact transformResolutionImpact(
       Element element, ResolutionImpact resolutionImpact) {
     WorldImpact worldImpact = _compiler.backend.impactTransformer
-        .transformResolutionImpact(enqueuer, resolutionImpact);
+        .transformResolutionImpact(resolutionImpact);
     _worldImpactCache[element] = worldImpact;
     return worldImpact;
   }
@@ -1822,6 +1822,9 @@ class _CompilerElementEnvironment implements ElementEnvironment {
   FunctionEntity get mainFunction => _compiler.mainFunction;
 
   @override
+  Iterable<LibraryEntity> get libraries => _compiler.libraryLoader.libraries;
+
+  @override
   ResolutionInterfaceType getThisType(ClassElement cls) {
     cls.ensureResolved(_resolution);
     return cls.thisType;