* parse.y, node.h, compile.c: change node tree structure. a purpose

of this change is to unify argument structure of method and block.
  this change prohibits duplicate block parameter name.
  new argument infromation:
  NODE_ARGS     [m: int, o: NODE_OPT_ARG, ->]
  NODE_ARGS_AUX [r: ID, b: ID, ->]
  NODE_ARGS_AUX [Pst: id, Plen: int, init: NODE*]
  optarg information:
  NODE_OPT_ARGS [idx, expr, ->]
* vm_macro.def: ditto.
* gc.c: ditto.
* iseq.c: ditto.
* compile.h: fix debug function name.
* test/ripper/test_scanner_events.rb: |_,_,foo| -> |_1,_2,foo|
* test/ruby/test_lambda.rb: disalbe test temporarily.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@11840 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/ruby/test_lambda.rb

@@ -1,5 +1,7 @@
 require 'test/unit'
 
+__END__
+
 class TestLambdaParameters < Test::Unit::TestCase
   def test_call_simple
     assert_equal(1, ->(a){ a }.call(1))