Don't exclude constants from the stdlib in NameMap

Author: eregon

lib/mspec/utils/name_map.rb

@@ -57,14 +57,10 @@ class NameMap
  EXCLUDED = %w[
  MSpecScript
  MkSpec
- FileUtils
  MSpecOption
  MSpecOptions
  NameMap
- OptionParser
- RbConfig
  SpecVersion
- YAML
  ]
 
  def initialize(filter=false)

spec/utils/name_map_spec.rb

@@ -72,7 +72,6 @@ def n; end
  MSpecScript
  MkSpec
  NameMap
- OptionParser
  ]
 
  excluded.each do |const|