Remove unnecessary hide clauses

pkg/analyzer/lib/source/analysis_options_provider.dart

Index: pkg/analyzer/lib/source/analysis_options_provider.dart
diff --git a/pkg/analyzer/lib/source/analysis_options_provider.dart b/pkg/analyzer/lib/source/analysis_options_provider.dart
index fbacdfb3afce57aacabc1af7f6400c29ee8c2d67..cdd912cc3d5c41680c0ae3e3165b8fd8236a2619 100644
--- a/pkg/analyzer/lib/source/analysis_options_provider.dart
+++ b/pkg/analyzer/lib/source/analysis_options_provider.dart
@@ -4,7 +4,7 @@
 
 library analyzer.source.analysis_options_provider;
 
-import 'dart:core' hide Resource;
+import 'dart:core';
 
 import 'package:analyzer/file_system/file_system.dart';
 import 'package:analyzer/src/generated/engine.dart';
@@ -58,6 +58,7 @@ class AnalysisOptionsProvider {
         throw new OptionsFormatException('Unable to parse YAML document.');
       }
     }
+
     YamlNode doc = safelyLoadYamlNode();
 
     // Empty options.