Ruby

add debug counters for local variable (lavr) access.

• debug_counter.h: add the following counters:
  • lvar_get: counter for lvar get.
  • lvar_get_dynamic: counter for lvar get from upper frames.
  • lvar_set: coutner for lvar set.
  • lvar_set_dynamic: coutner for lvar set from upper frames.
  • lvar_set_slowpath: counter for lavr set using slowpath.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58977 b2dd03c8-39d4-4d8f-98ff-823fe69b080e