This benchmark measures a initialize time of non-used variable.
* benchmark/bm_vm1_lvar_set.rb: added.
  This benchmark measures a local variables initialization time.
* benchmark/bm_vm2_bigarray.rb: added.
  This benchmark mesures a big array literal creation time.
* benchmark/bm_vm2_bighash.rb:
  This benchmark mesures a big hash literal creation time.
* benchmark/bm*: change notation "i=0" to "i = 0".



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35821 b2dd03c8-39d4-4d8f-98ff-823fe69b080e