Remove unused API.

dart/tests/compiler/dart2js/analyze_helper.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.
 
 library analyze_helper;
 
 import "package:expect/expect.dart";
 import 'dart:async';
 import 'dart:io';
 import '../../../sdk/lib/_internal/compiler/compiler.dart' as api;
@@ skipping 105 matching lines @@
       if (checkWhiteList(uri, message)) {
         // Suppress whitelisted errors.
         return;
       }
       hasErrors = true;
     }
     super.diagnosticHandler(uri, begin, end, message, kind);
   }
 }
 
-Future analyze(List<Uri> uriList, Map<String, List<String>> whiteList) {
+Future analyze(List<Uri> uriList,
+               Map<String, List<String>> whiteList,
+               {bool analyzeAll: true}) {
   var libraryRoot = currentDirectory.resolve('sdk/');
   var provider = new CompilerSourceFileProvider();
   var handler = new CollectingDiagnosticHandler(whiteList, provider);
+  var options = <String>['--analyze-only', '--categories=Client,Server'];
+  if (analyzeAll) options.add('--analyze-all');
   var compiler = new Compiler(
       provider.readStringFromUri,
       null,
       handler.diagnosticHandler,
       libraryRoot, libraryRoot,
-      <String>['--analyze-only', '--analyze-all',
-               '--categories=Client,Server'],
+      options,
       {});
-  compiler.librariesToAnalyzeWhenRun = uriList;
-  return compiler.run(null).then((_) {
-    handler.checkResults();
-  });
+  if (analyzeAll) {
+    compiler.librariesToAnalyzeWhenRun = uriList;
+    return compiler.run(null).then((_) {
+      handler.checkResults();
+    });
+  } else {
+    return compiler.run(uriList.single).then((_) {
+      handler.checkResults();
+    });
+  }
 }