Refactor ConstantSystem

pkg/compiler/lib/src/js_backend/custom_elements_analysis.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 import '../compiler.dart' show Compiler;
 import '../constants/values.dart';
 import '../elements/resolution_types.dart';
 import '../elements/elements.dart';
 import '../universe/use.dart' show StaticUse;
 import '../universe/world_impact.dart'
@@ skipping 171 matching lines @@
         backend.addCompileTimeConstantForEmission(constant);
       }
     }
     activeClasses.addAll(newActiveClasses);
     instantiatedClasses.removeAll(newActiveClasses);
     return impactBuilder.flush();
   }
 
   TypeConstantValue makeTypeConstant(ClassElement element) {
     ResolutionDartType elementType = element.rawType;
-    return backend.constantSystem.createType(compiler, elementType);
+    return backend.constantSystem.createType(
+        compiler.commonElements, compiler.backend.backendClasses, elementType);
   }
 
   List<ConstructorElement> computeEscapingConstructors(
       ClassElement classElement) {
     List<ConstructorElement> result = <ConstructorElement>[];
     // Only classes that extend native classes have constructors in the table.
     // We could refine this to classes that extend Element, but that would break
     // the tests and there is no sane reason to subclass other native classes.
     if (backend.isNative(classElement)) return result;
 
     void selectGenerativeConstructors(ClassElement enclosing, Element member) {
       if (member.isGenerativeConstructor) {
         // Ignore constructors that cannot be called with zero arguments.
         ConstructorElement constructor = member;
         constructor.computeType(compiler.resolution);
         FunctionSignature parameters = constructor.functionSignature;
         if (parameters.requiredParameterCount == 0) {
           result.add(member);
         }
       }
     }
 
     classElement.forEachMember(selectGenerativeConstructors,
         includeBackendMembers: false, includeSuperAndInjectedMembers: false);
     return result;
   }
 }