Introduce the "Embedded" category.

tests/compiler/dart2js/analyze_helper.dart

Index: tests/compiler/dart2js/analyze_helper.dart
diff --git a/tests/compiler/dart2js/analyze_helper.dart b/tests/compiler/dart2js/analyze_helper.dart
index a91613351a6037eeb7476e46bcc7392b38aa02cc..7d843925e29181010d6c541eb3a642dae78877f5 100644
--- a/tests/compiler/dart2js/analyze_helper.dart
+++ b/tests/compiler/dart2js/analyze_helper.dart
@@ -137,6 +137,7 @@ typedef bool CheckResults(Compiler compiler,
 Future analyze(List<Uri> uriList,
                Map<String, List<String>> whiteList,
                {bool analyzeAll: true,
+                bool analyzeMain: false,
                 CheckResults checkResults}) {
   String testFileName =
       relativize(Uri.base, Platform.script, Platform.isWindows);
@@ -159,6 +160,7 @@ Future analyze(List<Uri> uriList,
   var options = <String>[Flags.analyzeOnly, '--categories=Client,Server',
       Flags.showPackageWarnings];
   if (analyzeAll) options.add(Flags.analyzeAll);
+  if (analyzeMain) options.add(Flags.analyzeMain);
   var compiler = new Compiler(
       provider,
       null,
@@ -189,7 +191,7 @@ Future analyze(List<Uri> uriList,
       exit(1);
     }
   }
-  if (analyzeAll) {
+  if (analyzeAll || analyzeMain) {
     compiler.librariesToAnalyzeWhenRun = uriList;
     return compiler.run(null).then(onCompletion);
   } else {