Fix typo that caused orphaned info to be emitted.

dart/sdk/lib/_internal/compiler/implementation/source_file_provider.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 source_file_provider;
 
 import 'dart:async';
 import 'dart:io';
 import 'dart:utf';
 
@@ skipping 76 matching lines @@
     bool fatal = (kind.ordinal & FATAL) != 0;
     bool isInfo = (kind.ordinal & INFO) != 0;
     if (isInfo && uri == null && kind != api.Diagnostic.INFO) {
       info(message, kind);
       return;
     }
     // [previousKind]/[lastKind] records the previous non-INFO kind we saw.
     // This is used to suppress info about a warning when warnings are
     // suppressed, and similar for hints.
     var previousKind = lastKind;
-    if (previousKind != api.Diagnostic.INFO) {
+    if (kind != api.Diagnostic.INFO) {
       lastKind = kind;
     }
     var color;
     if (kind == api.Diagnostic.ERROR) {
       color = colors.red;
     } else if (kind == api.Diagnostic.WARNING) {
       if (!showWarnings) return;
       color = colors.magenta;
     } else if (kind == api.Diagnostic.HINT) {
       if (!showHints) return;
@@ skipping 23 matching lines @@
     if (fatal && throwOnError) {
       isAborting = true;
       throw new AbortLeg(message);
     }
   }
 
   void call(Uri uri, int begin, int end, String message, api.Diagnostic kind) {
     return diagnosticHandler(uri, begin, end, message, kind);
   }
 }