test_method.rb, test_proc.rb: suppress warnings

* test/ruby/test_method.rb: suppress warnings in verbose mode.

* test/ruby/test_proc.rb: ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44412 b2dd03c8-39d4-4d8f-98ff-823fe69b080e