Measure the number of eval calls in JavaScript code

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Count:

• direct calls to eval
• hidden calls by passing string to setTimeout / setInterval

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Module will emit warnings like the following:

20:49:07.863 eval() called directly: from unknown fn: http://lib.onet.pl/s.csr/init/20130829,init.js @ 53!
20:49:07.863 Backtrace: unknown fn: http://lib.onet.pl/s.csr/init/20130829,init.js @ 53 / onetShowAsyncSlots(): http://lib.onet.pl/s.csr/init/20130829,init.js @ 18 / onetShowAsynchAds(): http://lib.onet.pl/s.csr/init/20130829,init.js @ 15 / unknown fn: http://csr.onet.pl/_s/csr-005/GLOWNA/NOWASG/slots=top,right,flat-sidebarbox,flat-search,flat-boks1,flat-link1,flat-link2,flat-link3,flat-link5,flat-link4,flat-link6,flat-link7,flat-link8,flat-link11,flat-link12,flat-link13,flat-boxright1,flat-boxright2,flat-boxright3,flat-boxright4,flat-boxright5,flat-boxright6,flat-boxright9,flat-boxright10,flat-config/kwrd=SEGR+BETA2+WARSZAWA/async=1/IV=201309082249070003870418/csr.js?AC=0ae59522ce2c3182&callback=onetShowAsynchAds @ 4
20:49:07.863 eval'ed code: link11spons = {
        "link": "Czas na grzybobranie, sprawdź się!", 
        "url": "http://fa4.clk.onet.pl/adclick/CID=100253/CCID=42651/(...)

17:32:42.947 eval() called via setTimeout(_gaq.push(['_trackEvent','CzasUU', 'RealnyBounce', 'Wiecej niz 10 sekund'])): from unknown fn: http://www.onet.pl/ @ 70!
17:32:42.947 Backtrace: unknown fn: http://www.onet.pl/ @ 70