Extract OrderedTypeSetBuilderBase from OrderedTypeSetBuilder

pkg/compiler/lib/src/elements/common.dart

 // Copyright (c) 2015, 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.
 
 /// Mixins that implement convenience methods on [Element] subclasses.
 
 library elements.common;
 
 import '../common/names.dart' show Identifiers, Names, Uris;
 import '../common_elements.dart' show CommonElements;
 import '../util/util.dart' show Link;
 import 'entities.dart';
 import 'elements.dart';
+import 'types.dart';
 import 'resolution_types.dart'
     show ResolutionDartType, ResolutionInterfaceType, ResolutionFunctionType;
 
 abstract class ElementCommon implements Element {
   @override
   bool get isLibrary => kind == ElementKind.LIBRARY;
 
   @override
   bool get isCompilationUnit => kind == ElementKind.COMPILATION_UNIT;
 
@@ skipping 159 matching lines @@
       String path = canonicalUri.path;
       return path.substring(path.lastIndexOf('/') + 1);
     }
   }
 }
 
 abstract class CompilationUnitElementCommon implements CompilationUnitElement {}
 
 abstract class ClassElementCommon implements ClassElement {
   @override
-  Link<ResolutionDartType> get allSupertypes => allSupertypesAndSelf.supertypes;
+  Link<InterfaceType> get allSupertypes => allSupertypesAndSelf.supertypes;
 
   @override
   int get hierarchyDepth => allSupertypesAndSelf.maxDepth;
 
   @override
   ResolutionInterfaceType asInstanceOf(ClassElement cls) {
     if (cls == this) return thisType;
-    return allSupertypesAndSelf.asInstanceOf(cls);
+    return allSupertypesAndSelf.asInstanceOf(cls, cls.hierarchyDepth);
   }
 
   @override
   ConstructorElement lookupConstructor(String name) {
     Element result = localLookup(name);
     return result != null && result.isConstructor ? result : null;
   }
 
   /**
    * Find the first member in the class chain with the given [memberName].
@@ skipping 216 matching lines @@
             return true;
           }
         }
       }
       lookupClass = lookupClass.superclass;
     }
     return false;
   }
 
   @override
-  bool implementsInterface(ClassElement intrface) {
-    return this != intrface &&
-        allSupertypesAndSelf.asInstanceOf(intrface) != null;
+  bool implementsInterface(ClassElement interface) {
+    return this != interface &&
+        allSupertypesAndSelf.asInstanceOf(
+                interface, interface.hierarchyDepth) !=
+            null;
   }
 
   @override
   bool implementsFunction(CommonElements commonElements) {
     return asInstanceOf(commonElements.functionClass) != null ||
         callType != null;
   }
 
   @override
   bool isSubclassOf(ClassElement cls) {
@@ skipping 218 matching lines @@
   @override
   bool get isBoolFromEnvironmentConstructor {
     return fromEnvironmentState == _FromEnvironmentState.BOOL;
   }
 
   @override
   bool get isStringFromEnvironmentConstructor {
     return fromEnvironmentState == _FromEnvironmentState.STRING;
   }
 }