DDC: remove dumpInfo flag

lib/src/server/server.dart

 // Copyright (c) 2015, 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.
 
 /// Development server that compiles Dart to JS on the fly.
 
 import 'dart:async';
 import 'dart:convert';
 import 'dart:io';
 
@@ skipping 68 matching lines @@
 
   CheckerResults run() {
     var clock = new Stopwatch()..start();
 
     // TODO(sigmund): we are missing a couple failures here. The
     // dependency_graph now detects broken imports or unsupported features
     // like more than one script tag (see .severe messages in
     // dependency_graph.dart). Such failures should be reported back
     // here so we can mark failure=true in the CheckerResults.
     rebuild(_entryNode, _buildSource);
-    _dumpInfoIfRequested();
     clock.stop();
     var time = (clock.elapsedMilliseconds / 1000).toStringAsFixed(2);
     _log.fine('Compiled ${_libraries.length} libraries in ${time} s\n');
     return new CheckerResults(
         _libraries, _failure || options.codegenOptions.forceCompile);
   }
 
   bool _buildSource(SourceNode node) {
     node.clearSummary();
     if (node is HtmlSourceNode) {
@@ skipping 89 matching lines @@
       changed++;
       return _buildSource(n);
     });
     clock.stop();
     if (changed > 0) _dumpInfoIfRequested();
     var time = (clock.elapsedMilliseconds / 1000).toStringAsFixed(2);
     _log.fine("Compiled ${changed} libraries in ${time} s\n");
   }
 
   _dumpInfoIfRequested() {
+    var reporter = this.reporter;
     if (reporter is HtmlReporter) {
-      (reporter as HtmlReporter).finish(options);
-    } else {
-      if (!options.dumpInfo || reporter is! SummaryReporter) return;
-      var result = (reporter as SummaryReporter).result;
-      if (!options.serverMode) print(summaryToString(result));
-      var filepath = options.serverMode
-          ? path.join(outputDir, 'messages.json')
-          : options.dumpInfoFile;
-      if (filepath == null) return;
-      new File(filepath).writeAsStringSync(JSON.encode(result.toJsonMap()));
+      reporter.finish(options);
+    } else if (reporter is SummaryReporter) {
+      var result = reporter.result;
+      if (outputDir != null) {
+        var filepath = path.join(outputDir, 'messages.json');
+        new File(filepath).writeAsStringSync(JSON.encode(result.toJsonMap()));
+      } else {
+        print(summaryToString(result));
+      }
     }
   }
 }
 
 class DevServer {
   final ServerCompiler compiler;
   final String outDir;
   final String host;
   final int port;
   final String _entryPath;
@@ skipping 111 matching lines @@
   Source resolveAbsolute(Uri uri, [Uri actualUri]) {
     var src = resolver.resolveAbsolute(uri, actualUri);
     return src.exists() ? src : null;
   }
 
   Uri restoreAbsolute(Source source) => resolver.restoreAbsolute(source);
 }
 
 final _log = new Logger('dev_compiler.src.server');
 final _earlyErrorResult = new CheckerResults(const [], true);