Move isPrivateName and isPublicName to Name.

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

 // Copyright (c) 2012, 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.
 
 part of js_backend;
 
 const VERBOSE_OPTIMIZER_HINTS = false;
 
 class JavaScriptItemCompilationContext extends ItemCompilationContext {
   final Set<HInstruction> boundsChecked = new Set<HInstruction>();
@@ skipping 1030 matching lines @@
         enqueueClass(enqueuer, jsPlainJavaScriptObjectClass, registry);
       } else if (cls == mapLiteralClass) {
         // For map literals, the dependency between the implementation class
         // and [Map] is not visible, so we have to add it manually.
         Element getFactory(String name, int arity) {
           // The constructor is on the patch class, but dart2js unit tests don't
           // have a patch class.
           ClassElement implementation = cls.patch != null ? cls.patch : cls;
           ConstructorElement ctor = implementation.lookupConstructor(name);
           if (ctor == null
-              || (isPrivateName(name)
+              || (Name.isPrivateName(name)
                   && ctor.library != mapLiteralClass.library)) {
             compiler.internalError(mapLiteralClass,
                                    "Map literal class $mapLiteralClass missing "
                                    "'$name' constructor"
                                    "  ${mapLiteralClass.constructors}");
           }
           return ctor;
         }
         Element getMember(String name) {
           // The constructor is on the patch class, but dart2js unit tests don't
@@ skipping 2036 matching lines @@
   }
 }
 
 /// Records that [constant] is used by the element behind [registry].
 class Dependency {
   final ConstantValue constant;
   final Element annotatedElement;
 
   const Dependency(this.constant, this.annotatedElement);
 }