Ruby

test_syntax.rb: test_unassignable

• test/ruby/test_syntax.rb (TestSyntax#test_unassignable): assert
  keywords are unassignable.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37250 b2dd03c8-39d4-4d8f-98ff-823fe69b080e