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/fixtures/class_variables.rb

@@ -0,0 +1,58 @@
+module ClassVariablesSpec
+
+  class ClassA
+    @@cvar_a = :cvar_a
+
+    def cvar_a
+      @@cvar_a
+    end
+
+    def cvar_a=(val)
+      @@cvar_a = val
+    end
+  end
+
+  class ClassB < ClassA; end
+
+  # Extended in ClassC
+  module ModuleM
+    @@cvar_m = :value
+
+    def cvar_m
+      @@cvar_m
+    end
+
+    def cvar_m=(val)
+      @@cvar_m = val
+    end
+  end
+
+  # Extended in ModuleO
+  module ModuleN
+    @@cvar_n = :value
+
+    def cvar_n
+      @@cvar_n
+    end
+
+    def cvar_n=(val)
+      @@cvar_n = val
+    end
+  end
+
+  module ModuleO
+    extend ModuleN
+  end
+
+  class ClassC
+    extend ModuleM
+
+    def self.cvar_defined?
+      self.class_variable_defined?(:@@cvar)
+    end
+
+    def self.cvar_c=(val)
+      @@cvar = val
+    end
+  end
+end