anchor.diff:  
       error = coverage_2(),
       ok = coverage_3(),
  +    #coverage{name=whatever} = coverage_4(),
  +    {'EXIT',{{badrecord,ok},_}} = catch coverage_5(),
   
       ok.
   
  
positive.code:     get(),
      ok.
  
  %% The identity function.
  id(I) -> I.
  
negative.code:         end,
      id({Join,Specs}).
  
  -record(coverage, {name}).
  
  coverage(_Config) ->
  
      %% Cover beam_ssa_codegen:force_reg/2
  