Convert legacy 'native code' to JS-forms in dart:html

lib/html/src/dart2js_LocationWrapper.dart

Index: lib/html/src/dart2js_LocationWrapper.dart
diff --git a/lib/html/src/dart2js_LocationWrapper.dart b/lib/html/src/dart2js_LocationWrapper.dart
index e6433d65eeb1a6ddac723bbf0f68dc6645079a46..6401a6da9f9dfb948516edb96e97439aaf8562d2 100644
--- a/lib/html/src/dart2js_LocationWrapper.dart
+++ b/lib/html/src/dart2js_LocationWrapper.dart
@@ -54,20 +54,15 @@ class _LocationWrapper implements LocalLocation {
   void set search(String value) => _set(_ptr, 'search', value);
 
 
-  void assign(String url) => _assign(_ptr, url);
+  void assign(String url) => JS('void', '#.assign(#)', _ptr, url);
 
-  void reload() => _reload(_ptr);
+  void reload() => JS('void', '#.reload()', _ptr);
 
-  void replace(String url) => _replace(_ptr, url);
+  void replace(String url) => JS('void', '#.replace(#)', _ptr, url);
 
-  String toString() => _toString(_ptr);
+  String toString() => JS('String', '#.toString()', _ptr);
 
 
-  static _get(p, m) native 'return p[m];';
-  static _set(p, m, v) native 'p[m] = v;';
-
-  static _assign(p, url) native 'p.assign(url);';
-  static _reload(p) native 'p.reload()';
-  static _replace(p, url) native 'p.replace(url);';
-  static _toString(p) native 'return p.toString();';
+  static _get(p, m) => JS('var', '#[#]', p, m);
+  static _set(p, m, v) => JS('void', '#[#] = #', p, m, v);
 }