Merge pull request LaravelCollective#654 from ngmy/fix-helper-return-types

Fix the return type of helpers

Author: mlantz

src/helpers.php

@@ -10,7 +10,7 @@
      * @param bool   $secure
      * @param bool   $escape
      *
-     * @return string
+     * @return \Illuminate\Support\HtmlString
      */
     function link_to($url, $title = null, $attributes = [], $secure = null, $escape = true)
     {
@@ -27,7 +27,7 @@ function link_to($url, $title = null, $attributes = [], $secure = null, $escape
      * @param array  $attributes
      * @param bool   $secure
      *
-     * @return string
+     * @return \Illuminate\Support\HtmlString
      */
     function link_to_asset($url, $title = null, $attributes = [], $secure = null)
     {
@@ -44,7 +44,7 @@ function link_to_asset($url, $title = null, $attributes = [], $secure = null)
      * @param array  $parameters
      * @param array  $attributes
      *
-     * @return string
+     * @return \Illuminate\Support\HtmlString
      */
     function link_to_route($name, $title = null, $parameters = [], $attributes = [])
     {
@@ -61,7 +61,7 @@ function link_to_route($name, $title = null, $parameters = [], $attributes = [])
      * @param array  $parameters
      * @param array  $attributes
      *
-     * @return string
+     * @return \Illuminate\Support\HtmlString
      */
     function link_to_action($action, $title = null, $parameters = [], $attributes = [])
     {