Use the entity model for dump_info.

tests/compiler/dart2js/deferred_load_graph_segmentation_test.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.
 
 // Test of the graph segmentation algorithm used by deferred loading
 // to determine which elements can be deferred and which libraries
 // much be included in the initial download (loaded eagerly).
 
 import 'package:async_helper/async_helper.dart';
 import 'package:compiler/src/compiler.dart';
 import 'package:compiler/src/deferred_load.dart';
 import 'package:expect/expect.dart';
 import 'memory_compiler.dart';
 
 void main() {
   asyncTest(() async {
     CompilationResult result =
         await runCompiler(memorySourceFiles: MEMORY_SOURCE_FILES);
     Compiler compiler = result.compiler;
 
     lookupLibrary(name) {
       return compiler.libraryLoader.lookupLibrary(Uri.parse(name));
     }
 
     var main = compiler.frontendStrategy.elementEnvironment.mainFunction;
     Expect.isNotNull(main, "Could not find 'main'");
 
-    var outputUnitForElement = compiler.deferredLoadTask.outputUnitForElement;
+    var outputUnitForEntity = compiler.deferredLoadTask.outputUnitForEntity;
 
     var mainOutputUnit = compiler.deferredLoadTask.mainOutputUnit;
     var backend = compiler.backend;
     var classes = backend.emitter.neededClasses;
     var inputElement = classes.where((e) => e.name == 'InputElement').single;
     dynamic lib1 = lookupLibrary("memory:lib1.dart");
     var foo1 = lib1.find("foo1");
     dynamic lib2 = lookupLibrary("memory:lib2.dart");
     var foo2 = lib2.find("foo2");
     dynamic lib3 = lookupLibrary("memory:lib3.dart");
     var foo3 = lib3.find("foo3");
     dynamic lib4 = lookupLibrary("memory:lib4.dart");
     var bar1 = lib4.find("bar1");
     var bar2 = lib4.find("bar2");
 
-    OutputUnit ou_lib1 = outputUnitForElement(foo1);
-    OutputUnit ou_lib2 = outputUnitForElement(foo2);
-    OutputUnit ou_lib1_lib2 = outputUnitForElement(foo3);
-    OutputUnit ou_lib4_1 = outputUnitForElement(bar1);
-    OutputUnit ou_lib4_2 = outputUnitForElement(bar2);
+    OutputUnit ou_lib1 = outputUnitForEntity(foo1);
+    OutputUnit ou_lib2 = outputUnitForEntity(foo2);
+    OutputUnit ou_lib1_lib2 = outputUnitForEntity(foo3);
+    OutputUnit ou_lib4_1 = outputUnitForEntity(bar1);
+    OutputUnit ou_lib4_2 = outputUnitForEntity(bar2);
 
-    Expect.equals(mainOutputUnit, outputUnitForElement(main));
-    Expect.notEquals(mainOutputUnit, outputUnitForElement(foo1));
+    Expect.equals(mainOutputUnit, outputUnitForEntity(main));
+    Expect.notEquals(mainOutputUnit, outputUnitForEntity(foo1));
     Expect.notEquals(ou_lib1, ou_lib1_lib2);
     Expect.notEquals(ou_lib2, ou_lib1_lib2);
     Expect.notEquals(ou_lib1, ou_lib2);
     Expect.notEquals(ou_lib4_1, ou_lib4_2);
     Expect.notEquals(ou_lib1, ou_lib4_2);
     // InputElement is native, so it should be in the mainOutputUnit.
-    Expect.equals(mainOutputUnit, outputUnitForElement(inputElement));
+    Expect.equals(mainOutputUnit, outputUnitForEntity(inputElement));
 
     var hunksToLoad = compiler.deferredLoadTask.hunksToLoad;
 
     var hunksLib1 = hunksToLoad["lib1"];
     var hunksLib2 = hunksToLoad["lib2"];
     var hunksLib4_1 = hunksToLoad["lib4_1"];
     var hunksLib4_2 = hunksToLoad["lib4_2"];
     Expect.listEquals([ou_lib1_lib2, ou_lib1], hunksLib1);
     Expect.listEquals([ou_lib1_lib2, ou_lib2], hunksLib2);
     Expect.listEquals([ou_lib4_1], hunksLib4_1);
@@ skipping 72 matching lines @@
 
 bar1() {
   return "hello";
 }
 
 bar2() {
   return 2;
 }
 """,
 };