ruby debugger step into a block directly
===

consider the following ruby code:

    #! /usr/bin/env ruby

    require 'debugger'

    def hello
      puts "hello"
      if block_given?
        yield
      end 
    end 

    def main
      debugger
      puts "test begin..."
      hello do   # <=  if you are here
        puts "here!" #<= how to get here without setting bp here or step into hello?
      end 
    end 

    main

It's very common during debugging, I don't care about the implementation of the function that yields to the block, I just want to step into the block directly, without manually set a bp there. 

any support for this kind of "step into block" from ruby-debug19 or debugger?

Thanks!