Ruby

merges r31436 and r31437 from trunk into ruby_1_9_2.¶

• eval.c (frame_func_id): method return different name from
  methods defined by Module#define_method with a same block.
  [ruby-core:35386] fixes #4606
• eval (method_entry_of_iseq): new helper function. search control
  frame stack for a method entry which has given iseq.
• test/ruby/test_method.rb: add tests for #4696
  --
  • eval.c (frame_func_id): store result of method_entry_of_iseq() to
    cfp->me because method_entry_of_iseq() might become expensive.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_2@31830 b2dd03c8-39d4-4d8f-98ff-823fe69b080e