* vm.c (invoke_block_from_c): move call/return event timing for
  bmethod. It can invoke inconsistent call event if this call raises
  argument error.
  [Bug #9959]
* vm_insnhelper.c (vm_call_bmethod_body): ditto.
* test/ruby/test_settracefunc.rb: add a test.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46464 b2dd03c8-39d4-4d8f-98ff-823fe69b080e