Add in-tree mspec and ruby/spec

* For easier modifications of ruby/spec by MRI developers.
* .gitignore: track changes under spec.
* spec/mspec, spec/rubyspec: add in-tree mspec and ruby/spec.
  These files can therefore be updated like any other file in MRI.
  Instructions are provided in spec/README.
  [Feature #13156] [ruby-core:79246]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 54 insertions, 0 deletions

diff --git a/spec/rubyspec/language/fixtures/constants_sclass.rb b/spec/rubyspec/language/fixtures/constants_sclass.rb
new file mode 100644
index 0000000000..21dc4081e2
--- /dev/null
+++ b/spec/rubyspec/language/fixtures/constants_sclass.rb
@@ -0,0 +1,54 @@
+module ConstantSpecs
+
+  CS_SINGLETON1 = Object.new
+  class << CS_SINGLETON1
+    CONST = 1
+    def foo
+      CONST
+    end
+  end
+
+  CS_SINGLETON2 = [Object.new, Object.new]
+  2.times do |i|
+    obj = CS_SINGLETON2[i]
+    $spec_i = i
+    class << obj
+      CONST = ($spec_i + 1)
+      def foo
+        CONST
+      end
+    end
+  end
+
+  CS_SINGLETON3 = [Object.new, Object.new]
+  2.times do |i|
+    obj = CS_SINGLETON3[i]
+    class << obj
+      class X
+        # creates <singleton class::X>
+      end
+
+      def x
+        X
+      end
+    end
+  end
+
+  CS_SINGLETON4 = [Object.new, Object.new]
+  CS_SINGLETON4_CLASSES = []
+  2.times do |i|
+    obj = CS_SINGLETON4[i]
+    $spec_i = i
+    class << obj
+      class X
+        CS_SINGLETON4_CLASSES << self
+        CONST = ($spec_i + 1)
+
+        def foo
+          CONST
+        end
+      end
+    end
+  end
+
+end