Support (de)serialization from command-line

tests/compiler/dart2js/analyze_test_test.dart

Index: tests/compiler/dart2js/analyze_test_test.dart
diff --git a/tests/compiler/dart2js/analyze_test_test.dart b/tests/compiler/dart2js/analyze_test_test.dart
index a38c814c37d47ba5a7bc9c3d1eb77443ddae13fd..8f544cbb7480e470427c63b03580dea461e5952c 100644
--- a/tests/compiler/dart2js/analyze_test_test.dart
+++ b/tests/compiler/dart2js/analyze_test_test.dart
@@ -66,17 +66,23 @@ main(List<String> arguments) {
     }
   }
   List<Uri> uriList = <Uri>[];
+  String filter;
   for (String arg in arguments) {
     if (!arg.startsWith('-')) {
-      for (String line in new File(arg).readAsLinesSync()) {
-        line = line.trim();
-        if (line.startsWith('Analyzing uri: ')) {
-          int filenameOffset = line.indexOf('tests/compiler/dart2js/');
-          if (filenameOffset != -1) {
-            uriList.add(Uri.base.resolve(
-                nativeToUriPath(line.substring(filenameOffset))));
+      File file = new File(arg);
+      if (file.existsSync()) {
+        for (String line in file.readAsLinesSync()) {
+          line = line.trim();
+          if (line.startsWith('Analyzing uri: ')) {
+            int filenameOffset = line.indexOf('tests/compiler/dart2js/');
+            if (filenameOffset != -1) {
+              uriList.add(Uri.base.resolve(
+                  nativeToUriPath(line.substring(filenameOffset))));
+            }
           }
         }
+      } else {
+        filter = arg;
       }
     }
   }
@@ -88,6 +94,9 @@ main(List<String> arguments) {
       for (FileSystemEntity entity in dir.listSync(recursive: true)) {
         if (entity is File && entity.path.endsWith('.dart')) {
           Uri file = Uri.base.resolve(nativeToUriPath(entity.path));
+          if (filter != null && !'$file'.contains(filter)) {
+            continue;
+          }
           if (!SKIP_LIST.any((skip) => file.path.contains(skip))) {
             uriList.add(file);
           }