Rename `Kernel#__method__` to `Kernel#__callee__`

Because the current behavior of `__method__` is equivalent to `__callee__`.

Example:

  # example.rb
  def src
    __send__(ARGV[0])
  end
  alias dst src
  %w[src dst].each {|n| puts "call #{n} => #{__send__(n).inspect}"}

  Ruby:

    $ ruby example.rb __method__
    call src => :src
    call dst => :src

    $ ruby example.rb __callee__
    call src => :src
    call dst => :dst

  mruby:

    $ mruby example.rb __method__
    call src => :src
    call dst => :dst

1 files changed, 1 insertions, 1 deletions

diff --git a/mrbgems/mruby-enumerator/mrblib/enumerator.rb b/mrbgems/mruby-enumerator/mrblib/enumerator.rb
index f007b8553..5856eb653 100644
--- a/mrbgems/mruby-enumerator/mrblib/enumerator.rb
+++ b/mrbgems/mruby-enumerator/mrblib/enumerator.rb
@@ -631,7 +631,7 @@ module Kernel
   #       def repeat(n)
   #         raise ArgumentError, "#{n} is negative!" if n < 0
   #         unless block_given?
-  #           return to_enum(__method__, n) # __method__ is :repeat here
+  #           return to_enum(__callee__, n) do # __callee__ is :repeat here
   #         end
   #         each do |*val|
   #           n.times { yield *val }