Remove `#among?` from Active Support

After a long list of discussion about the performance problem from using varargs and the reason that we can't find a great pair for it, it would be best to remove support for it for now.

It will come back if we can find a good pair for it. For now, Bon Voyage, `#among?`.

1 files changed, 2 insertions, 2 deletions

diff --git a/activesupport/lib/active_support/cache/file_store.rb b/activesupport/lib/active_support/cache/file_store.rb
index bdef47a237..9936b33e22 100644
--- a/activesupport/lib/active_support/cache/file_store.rb
+++ b/activesupport/lib/active_support/cache/file_store.rb
@@ -21,7 +21,7 @@ module ActiveSupport
       end
 
       def clear(options = nil)
-        root_dirs = Dir.entries(cache_path).reject{|f| f.among?('.', '..')}
+        root_dirs = Dir.entries(cache_path).reject{|f| f.in?(['.', '..'])}
         FileUtils.rm_r(root_dirs.collect{|f| File.join(cache_path, f)})
       end
 
@@ -162,7 +162,7 @@ module ActiveSupport
         # Delete empty directories in the cache.
         def delete_empty_directories(dir)
           return if dir == cache_path
-          if Dir.entries(dir).reject{|f| f.among?('.', '..')}.empty?
+          if Dir.entries(dir).reject{|f| f.in?(['.', '..'])}.empty?
             File.delete(dir) rescue nil
             delete_empty_directories(File.dirname(dir))
           end