Move spec/rubyspec to spec/ruby for consistency

* Other ruby implementations use the spec/ruby directory.
  [Misc #13792] [ruby-core:82287]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

spec/ruby/spec_helper.rb

@@ -0,0 +1,18 @@
+use_realpath = File.respond_to?(:realpath)
+root = File.dirname(__FILE__)
+dir = "fixtures/code"
+CODE_LOADING_DIR = use_realpath ? File.realpath(dir, root) : File.expand_path(dir, root)
+
+# Running directly with ruby some_spec.rb
+unless ENV['MSPEC_RUNNER']
+  begin
+    require 'mspec'
+    require 'mspec/commands/mspec-run'
+  rescue LoadError
+    puts "Please add -Ipath/to/mspec/lib or install the MSpec gem to run the specs."
+    exit 1
+  end
+
+  ARGV.unshift $0
+  MSpecRun.main
+end