Refactoring to prepare for kernel based jump targets

pkg/compiler/lib/src/kernel/element_map_impl.dart

 // Copyright (c) 2017, 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.
 
 library dart2js.kernel.element_map;
 
 import 'package:kernel/ast.dart' as ir;
 import 'package:kernel/clone.dart';
 import 'package:kernel/type_algebra.dart';
 
@@ skipping 1344 matching lines @@
     LibraryEntity library = elementMap.lookupLibrary(uri);
     if (library == null && required) {
       throw new SpannableAssertionFailure(
           CURRENT_ELEMENT_SPANNABLE, "The library '$uri' was not found.");
     }
     return library;
   }
 
   @override
   bool isDeferredLoadLibraryGetter(covariant KMember member) {
-    // TODO(johnniwinther): Support these.
+    // TODO(redemption): Support these.
     return false;
   }
 
   @override
   Iterable<ConstantValue> getMemberMetadata(covariant KMember member) {
     _MemberData memberData = elementMap._memberList[member.memberIndex];
     return memberData.getMetadata(elementMap);
   }
 }
 
@@ skipping 185 matching lines @@
     return elementMap._getOrderedTypeSet(cls).supertypes;
   }
 
   @override
   ClassEntity getSuperClass(ClassEntity cls) {
     return elementMap._getSuperType(cls)?.element;
   }
 
   @override
   bool implementsFunction(ClassEntity cls) {
-    // TODO(johnniwinther): Implement this.
+    // TODO(redemption): Implement this.
     return false;
   }
 
   @override
   int getHierarchyDepth(ClassEntity cls) {
     return elementMap._getHierarchyDepth(cls);
   }
 
   @override
   ClassEntity getAppliedMixin(ClassEntity cls) {
@@ skipping 175 matching lines @@
   @override
   bool isNativeMethod(covariant KFunction function) {
     if (!native.maybeEnableNative(function.library.canonicalUri)) return false;
     ir.Member node = elementMap._memberList[function.memberIndex].node;
     return node.isExternal &&
         !elementMap.isForeignLibrary(node.enclosingLibrary);
   }
 
   @override
   bool isJsInteropMember(MemberEntity element) {
-    // TODO(johnniwinther): Compute this.
+    // TODO(redemption): Compute this.
     return false;
   }
 }
 
 class JsKernelToElementMap extends KernelToElementMapMixin
     implements KernelToWorldBuilder {
   final JsToFrontendMap _map;
   final ElementEnvironment _elementEnvironment;
   final CommonElements _commonElements;
   final KernelToElementMapImpl _elementMap;
@@ skipping 129 matching lines @@
     throw new UnsupportedError(
         "JsKernelToElementMap.getConstantFieldInitializer");
   }
 
   @override
   bool hasConstantFieldInitializer(FieldEntity field) {
     throw new UnsupportedError(
         "JsKernelToElementMap.hasConstantFieldInitializer");
   }
 }