Support (de)serialization from command-line

tests/compiler/dart2js/serialization/resolved_ast_test.dart

Index: tests/compiler/dart2js/serialization/resolved_ast_test.dart
diff --git a/tests/compiler/dart2js/serialization/resolved_ast_test.dart b/tests/compiler/dart2js/serialization/resolved_ast_test.dart
index 28fbe79059382f6ed22d9438eb04c8aa514bb09c..cffdd1e5aeea1e73213524f3229f8b54efcf28eb 100644
--- a/tests/compiler/dart2js/serialization/resolved_ast_test.dart
+++ b/tests/compiler/dart2js/serialization/resolved_ast_test.dart
@@ -14,6 +14,7 @@ import 'package:compiler/src/compiler.dart';
 import 'package:compiler/src/elements/elements.dart';
 import 'package:compiler/src/filenames.dart';
 import 'package:compiler/src/serialization/equivalence.dart';
+import 'package:compiler/src/serialization/system.dart';
 import '../memory_compiler.dart';
 import 'helper.dart';
 import 'test_data.dart';
@@ -52,7 +53,7 @@ Future check(
       memorySourceFiles: sourceFiles,
       options: [Flags.analyzeAll]);
   compilerDeserialized.resolution.retainCachesForTesting = true;
-  deserialize(compilerDeserialized, serializedData);
+  compilerDeserialized.serialization.deserializeFromText(serializedData);
   await compilerDeserialized.run(entryPoint);
 
   checkAllResolvedAsts(compilerNormal, compilerDeserialized, verbose: true);
@@ -80,7 +81,7 @@ void checkResolvedAsts(Compiler compiler1, Element member1,
                        {bool verbose: false}) {
   ResolvedAst resolvedAst1 = compiler1.resolution.getResolvedAst(member1);
   ResolvedAst resolvedAst2 =
-      compiler2.serialization.deserializer.getResolvedAst(member2);
+      compiler2.serialization.system.getResolvedAst(member2);
 
   if (resolvedAst1 == null || resolvedAst2 == null) return;