Properly hiding import of deprecate from collection-dev.

sdk/lib/svg/dart2js/svg_dart2js.dart

 library dart.dom.svg;
 
 import 'dart:async';
 import 'dart:collection';
-import 'dart:_collection-dev';
+import 'dart:_collection-dev' hide deprecated;
 import 'dart:html';
 import 'dart:html_common';
 import 'dart:_js_helper' show Creates, Returns, JavaScriptIndexingBehavior, JSName;
 import 'dart:_foreign_helper' show JS;
 import 'dart:_interceptors' show Interceptor;
 // DO NOT EDIT - unless you are editing documentation as per:
 // https://code.google.com/p/dart/wiki/ContributingHTMLDocumentation
 // Auto-generated dart:svg library.
 
 
@@ skipping 7312 matching lines @@
 @DomName('SVGVKernElement')
 @Unstable()
 abstract class _SVGVKernElement extends SvgElement native "SVGVKernElement" {
   // To suppress missing implicit constructor warnings.
   factory _SVGVKernElement._() { throw new UnsupportedError("Not supported"); }
 
   @DomName('SVGVKernElement.SVGVKernElement')
   @DocsEditable()
   factory _SVGVKernElement() => _SvgElementFactoryProvider.createSvgElement_tag("vkern");
 }