[ruby-core:18031] RDoc does not support the private comment for class etc in C Extension.

Hi,

RDoc does not support the private comment for class (or module) and
constant in C extension library.
For example, "FIXME: ..." and "TODO: ..." are not ignored when the
follows comment processed by rdoc command.

ex) 1. For class.
  /*
   * Document-class: Foo
   * This is a comment for Foo
   *--
   * FIXME: ...
   *++
   *
   *-- TODO: ...
   */
  Init_foo(void) {
      VALUE cFoo = rb_define_class("Foo", rb_cObject);
  }

ex) 2. For constant.

  /* 
   * 300: The perfect score in bowling
   *--
   * FIXME: ...
   *++
   *
   *-- TODO: ...
   */
  rb_define_const(cFoo, "PERFECT", INT2FIX(300);

I made the patch for supporting the private comment.

Ruby version:
  ruby 1.9.0 (2008-07-31 revision 18282) [i686-darwin9.4.0]

Thanks Kouji.

Index: lib/rdoc/parser/c.rb
===================================================================
--- lib/rdoc/parser/c.rb	(revision 51)
+++ lib/rdoc/parser/c.rb	(working copy)
@@ -384,6 +384,7 @@
         end
       end
     end
+    remove_private_comments(comment) if comment
     class_meth.comment = mangle_comment(comment) if comment
   end
 
@@ -520,6 +521,7 @@
     end
 
     comment = find_const_comment(type, const_name)
+    remove_private_comments(comment)
 
     # In the case of rb_define_const, the definition and comment are in
     # "/* definition: comment */" form.  The literal ':' and '\' characters