* eval.c (proc_invoke): reverted r25975.  [ruby-dev:39931]
	  [ruby-dev:40059]
	* eval.c (rb_mod_define_method): return original block but not
	  bound block.  [ruby-core:26984]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8_7@27954 b2dd03c8-39d4-4d8f-98ff-823fe69b080e