unexpected token kEND (Parser::SyntaxError)

[mslinn]

First time I tried to use zombie_scout, on a large program written by someone else, I got this:

$ zombie_scout scout
(string):544:1: error: unexpected token kEND
(string):544: end
(string):544: ^~~
Traceback (most recent call last):
        20: from /usr/local/bin/zombie_scout:23:in `<main>'
        19: from /usr/local/bin/zombie_scout:23:in `load'
        18: from /var/lib/gems/2.5.0/gems/zombie_scout-0.0.6/bin/zombie_scout:5:in `<top (required)>'
        17: from /var/lib/gems/2.5.0/gems/thor-0.20.0/lib/thor/base.rb:466:in `start'
        16: from /var/lib/gems/2.5.0/gems/thor-0.20.0/lib/thor.rb:387:in `dispatch'
        15: from /var/lib/gems/2.5.0/gems/thor-0.20.0/lib/thor/invocation.rb:126:in `invoke_command'
        14: from /var/lib/gems/2.5.0/gems/thor-0.20.0/lib/thor/command.rb:27:in `run'
        13: from /var/lib/gems/2.5.0/gems/zombie_scout-0.0.6/lib/zombie_scout/app.rb:11:in `scout'
        12: from /var/lib/gems/2.5.0/gems/zombie_scout-0.0.6/lib/zombie_scout/mission.rb:18:in `scout'
        11: from /var/lib/gems/2.5.0/gems/zombie_scout-0.0.6/lib/zombie_scout/mission.rb:55:in `zombies'
        10: from /var/lib/gems/2.5.0/gems/zombie_scout-0.0.6/lib/zombie_scout/mission.rb:64:in `scout!'
         9: from /var/lib/gems/2.5.0/gems/zombie_scout-0.0.6/lib/zombie_scout/mission.rb:64:in `each'
         8: from /var/lib/gems/2.5.0/gems/zombie_scout-0.0.6/lib/zombie_scout/mission.rb:65:in `block in scout!'
         7: from /var/lib/gems/2.5.0/gems/zombie_scout-0.0.6/lib/zombie_scout/mission.rb:65:in `new'
         6: from /var/lib/gems/2.5.0/gems/zombie_scout-0.0.6/lib/zombie_scout/parser.rb:13:in `initialize'
         5: from /var/lib/gems/2.5.0/gems/parser-2.5.1.2/lib/parser/base.rb:33:in `parse'
         4: from /var/lib/gems/2.5.0/gems/parser-2.5.1.2/lib/parser/base.rb:167:in `parse'
         3: from /usr/lib/ruby/2.5.0/racc/parser.rb:259:in `do_parse'
         2: from /usr/lib/ruby/2.5.0/racc/parser.rb:259:in `_racc_do_parse_c'
         1: from /var/lib/gems/2.5.0/gems/parser-2.5.1.2/lib/parser/base.rb:262:in `on_error'
/var/lib/gems/2.5.0/gems/parser-2.5.1.2/lib/parser/diagnostic/engine.rb:73:in `process': unexpected token kEND (Parser::SyntaxError)

[danbernier]

I'm guessing this is a side-effect of #6 - if there's a parse error in the source, zombie_scout just falls over. Iirr, I didn't fix this quickly, because I ran into trouble reproducing it reliably. Maybe the best solution is to remove the flog scores - though it's nice to see which methods are expensive. But maybe it's best to let it go.