yarv2llvm -- Yarv to LLVM Translater

-- Description
  yarv2llvm is Yarv to LLVM translater. 
  yarv2llvm will try for type inference.

-- Install
  yarv2llvm has need of llvmruby of ruby gem version
  (http://github.com/tombagby/llvmruby/tree/master)
  
   1. Install llvmruby

   2. Copy yarv2llvm.rb and ./lib/*.* to any directory which is in 
      the ruby library path.

  yarv2llvm need ruby1.9.2 or later.
  If you want to use ruby 1.9.1, you must install methopara
  (http://github.com/genki/methopara/tree/master).

-- Usage

   require 'yarv2llvm'
   YARV2LLVM::compile("Method definition in string")
   method(args)

   For example

    require 'yarv2llvm'
    YARV2LLVM::compile('def fact(n);if n == 0 then 1 else n * fact(n -1);end;end')   
    p fact(5)  # -> 120


   You can also use yarv2llvm as subset Ruby compler.
   For example

    ruby19 yarv2llvm.rb bm_so_nbody.rb
    -0.169074947
    -0.169083520

-- Limit
   yarv2llvm accepts very small subset of ruby.
   I will grow the subset yarv2llvm accepts.
   The subset of current version appears "test/test_compile.rb" .

-- BUGS
  If you apply bad program for yarv2llvm, you must break the code from
  yarv2llvm.

-- Author
   Miura Hideki (miura1729)
   e-mail: m-72 at tf6.so-net.ne.jp
   blog:   http://d.hatena.ne.jp/miura1729 (in Japanese)

-- License

 under the Ruby's License

 "sample/ao-render.rb" is under BSD3
 Original version was written by Syoyo Fujita.