Code: * Test mutant with dynamically created zombie. * Replace nil or add "do not touch me object" to literal mutations. * Fix ugly code within default parameters AST: * Fix the rubinius AST to allow setting @vcall_style variable in Rubinius::AST::Send nodes. Mutations: * Add some kind of a "do not touch me object" that raises on all messages. It can be used to make sure each literal value is touched. * Mutate options on Regexp literals * Make sure loader does not change visibility of injected mutants * Add mutations for dynamic regexp symbol and string literals Killers: * Aggregate warnings on missing spec files * Add a general master <=> killer IPC interface. So different strategies of isolation (fork, vs jruby runtime creation) will work without big impact. Matcher: * Allow matches on attr_reader with literal name argument(s)? * Allow matches on define_method with literal name argument? jruby-support: * Hook melbourne via ffi * Create a runtime per mutation to kill mutations in isolation