Fix off-by-one error in https://code.google.com/p/dart/source/detail?r=45153

and https://code.google.com/p/dart/source/detail?r=45154 .

R=sigmund@google.com

Review URL: https://codereview.chromium.org//1055283003

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@45189 260f80e4-7a28-3924-810f-c04153c831b5

Author: dgrove

sdk/lib/_internal/pub/test/serve/404_page_test.dart

@@ -39,7 +39,7 @@ main() {
       expect(response.statusCode, equals(404));
 
       // Should mention the asset that can't be found.
-      expect(response.body, contains('".packages"'));
+      expect(response.body, contains('"/packages"'));
     });
 
     endPubServe();

sdk/lib/convert/html_escape.dart

@@ -182,7 +182,7 @@ class HtmlEscape extends Converter<String, String> {
         case "'": if (mode.escapeApos) replacement = '&#39;'; break;
         case '<': if (mode.escapeLtGt) replacement = '&lt;'; break;
         case '>': if (mode.escapeLtGt) replacement = '&gt;'; break;
-        case '/': if (mode.escapeSlash) replacement = '&#46;'; break;
+        case '/': if (mode.escapeSlash) replacement = '&#47;'; break;
       }
       if (replacement != null) {
         if (result == null) result = new StringBuffer();

tests/lib/convert/html_escape_test.dart

@@ -10,7 +10,7 @@ const _NOOP = 'Nothing_to_escape';
 
 const _TEST_INPUT = """<A </test> of \xA0 "double" & 'single' values>""";
 
-const _OUTPUT_UNKNOWN = '&lt;A &lt;&#46;test&gt; of \xA0 &quot;double&quot; '
+const _OUTPUT_UNKNOWN = '&lt;A &lt;&#47;test&gt; of \xA0 &quot;double&quot; '
   '&amp; &#39;single&#39; values&gt;';
 
 const _OUTPUT_ATTRIBUTE =