Clean up many generated constructors

pkg/analyzer/example/resolver_driver.dart

Index: pkg/analyzer/example/resolver_driver.dart
diff --git a/pkg/analyzer/example/resolver_driver.dart b/pkg/analyzer/example/resolver_driver.dart
index 44d963511f373daf98beecf2b93125eb7b6e6d11..59e66e748feaebd05fa4dde92b922f08db3456ae 100755
--- a/pkg/analyzer/example/resolver_driver.dart
+++ b/pkg/analyzer/example/resolver_driver.dart
@@ -14,9 +14,6 @@ import 'package:analyzer/src/generated/sdk_io.dart' show DirectoryBasedDartSdk;
 import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer/src/generated/source_io.dart';
 
-const _usage =
-    'Usage: resolve_driver <path_to_sdk> <file_to_resolve> [<packages_root>]';
-
 void main(List<String> args) {
   print('working dir ${new File('.').resolveSymbolicLinksSync()}');
 
@@ -43,7 +40,7 @@ void main(List<String> args) {
   AnalysisContext context = AnalysisEngine.instance.createAnalysisContext()
     ..sourceFactory = new SourceFactory(resolvers);
 
-  Source source = new FileBasedSource.con1(new JavaFile(args[1]));
+  Source source = new FileBasedSource(new JavaFile(args[1]));
   ChangeSet changeSet = new ChangeSet()..addedSource(source);
   context.applyChanges(changeSet);
   LibraryElement libElement = context.computeLibraryElement(source);
@@ -55,6 +52,9 @@ void main(List<String> args) {
   resolvedUnit.accept(visitor);
 }
 
+const _usage =
+    'Usage: resolve_driver <path_to_sdk> <file_to_resolve> [<packages_root>]';
+
 class _ASTVisitor extends GeneralizingAstVisitor {
   visitNode(AstNode node) {
     var lines = <String>['${node.runtimeType} : <"$node">'];