Include most of the `test`-folder in the LGTM report (PR 13772 follow-up)
Include most of the `test`-folder in the LGTM report (PR 13772 follow-up)

Given that PR 13772 seem to have worked as intended, it probably cannot hurt to enable the LGTM report for *most* of the remaining code in the `test`-folder. (The one remaining exception is code which originated *outside* of the PDF.js project.)

*Please note:* We'll need to land this patch to actually see any difference in the LGTM results.

macroplant/pdf.js,Shoobx/pdf.js,mozilla/pdf.js,Shoobx/pdf.js,Snuffleupagus/pdf.js,Snuffleupagus/pdf.js,timvandermeij/pdf.js,nawawi/pdf.js,nawawi/pdf.js,Snuffleupagus/pdf.js,macroplant/pdf.js,Shoobx/pdf.js,showpad/mozilla-pdf.js,macroplant/pdf.js,mozilla/pdf.js,xavier114fch/pdf.js,mozilla/pdf.js,showpad/mozilla-pdf.js,timvandermeij/pdf.js,timvandermeij/pdf.js,xavier114fch/pdf.js,showpad/mozilla-pdf.js,nawawi/pdf.js