merge revision(s) 55554: [Backport #12537]
* test/fiddle/test_pointer.rb (test_to_str, test_to_s, test_aref_aset): Attempt to use independent strings for destructive tests that directly modify values on memory by using Fiddle::Pointer. [Bug #12537] [ruby-dev:49700]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_2@56302 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 55554: [Backport #12537]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_2@56302 b2dd03c8-39d4-4d8f-98ff-823fe69b080e