move the path alias to a more appropriate location

app/models/snippet.rb

@@ -21,11 +21,6 @@ class Snippet < ActiveRecord::Base
     format: { with: Gitlab::Regex.file_name_regex,
               message: Gitlab::Regex.file_name_regex_message }
 
-  # [jneen] alias for compatibility with blobs and highlighting
-  def path
-    file_name
-  end
-
   validates :content, presence: true
   validates :visibility_level, inclusion: { in: Gitlab::VisibilityLevel.values }
 
@@ -87,6 +82,11 @@ class Snippet < ActiveRecord::Base
     0
   end
 
+  # alias for compatibility with blobs and highlighting
+  def path
+    file_name
+  end
+
   def name
     file_name
   end