module RSpec::Rake

def self.const_missing(name)

RSpec::Core::RakeTask instead)
Used to print deprecation warnings for Rake::SpecTask constant (use 
def self.const_missing(name)
  case name
  when :SpecTask
    RSpec.deprecate("Spec::Rake::SpecTask", :replacement => "RSpec::Core::RakeTask")
    require 'rspec/core/rake_task'
    RSpec::Core::RakeTask
  else
    begin
      super
    rescue Exception => e
      e.backtrace.reject! {|l| l =~ Regexp.compile(__FILE__) }
      raise e
    end
  end
end