Ruby

vm_insnhelper.c: delete unused macros

• FIXNUM_2_P: moved to vm_insnhelper.c because that is the only
  place this macro is used.

• FLONUM_2_P: ditto.

• FLOAT_HEAP_P: not used anywhere.

• FLOAT_INSTANCE_P: ditto.

• GET_TOS: ditto.

• USE_IC_FOR_SPECIALIZED_METHOD: ditto.

• rb_obj_hidden_p: ditto.

• REG_A: ditto.

• REG_B: ditto.

• GET_CONST_INLINE_CACHE: ditto.

• vm_regan_regtype: moved inside of VM_COLLECT_USAGE_DETAILS
  because that os the only place this enum is used.

• vm_regan_acttype: ditto.

• GET_GLOBAL: used only once. Removed with replacing that usage.

• SET_GLOBAL: ditto.

• rb_method_definition_create: declaration moved to
  vm_insnhelper.c because that is the only place this declaration
  makes sense.

• rb_method_definition_set: ditto.

• rb_method_definition_eq: ditto.

• rb_make_no_method_exception: ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66597 b2dd03c8-39d4-4d8f-98ff-823fe69b080e