Explicit html_escape removed when not needed

Signed-off-by: Yehuda Katz <yehudakatz@YK.local>

actionpack/lib/action_view/helpers/active_model_helper.rb

@@ -127,7 +127,7 @@ module ActionView
         if (obj = (object.respond_to?(:errors) ? object : instance_variable_get("@#{object}"))) &&
           (errors = obj.errors[method])
           content_tag("div",
-            "#{options[:prepend_text]}#{ERB::Util.html_escape(errors.first)}#{options[:append_text]}".html_safe,
+            (options[:prepend_text].html_safe << errors.first).safe_concat(options[:append_text]),
             :class => options[:css_class]
           )
         else
@@ -226,7 +226,7 @@ module ActionView
 
             error_messages = objects.sum do |object|
               object.errors.full_messages.map do |msg|
-                content_tag(:li, ERB::Util.html_escape(msg))
+                content_tag(:li, msg)
               end
             end.join.html_safe
 

actionpack/lib/action_view/helpers/tag_helper.rb

@@ -127,7 +127,7 @@ module ActionView
 
         def content_tag_string(name, content, options, escape = true)
           tag_options = tag_options(options, escape) if options
-          "<#{name}#{tag_options}>#{ERB::Util.h content}</#{name}>".html_safe
+          ("<#{name}#{tag_options}>".html_safe << content.to_s).safe_concat("</#{name}>")
         end
 
         def tag_options(options, escape = true)

actionpack/lib/action_view/helpers/url_helper.rb

@@ -226,7 +226,7 @@ module ActionView
           end
 
           href_attr = "href=\"#{url}\"" unless href
-          "<a #{href_attr}#{tag_options}>#{ERB::Util.h(name || url)}</a>".html_safe
+          ("<a #{href_attr}#{tag_options}>".html_safe << (name || url)).safe_concat("</a>")
         end
       end