Macro in record name crashes Hank

[elbrujohalcon]

Describe the bug If you use a macro as a record name in a module where there is also a record that has an unused field, Hank crashes.

To Reproduce Analyze this module…

-module(macros).

%% There must be a paresable record
-record(a_rec, {unused_field}).

%% But also an "unparseable" one
-record(?MODULE, {}).

Expected behavior A warning about unused_field being unused.

rebar3 logs

{{badarg,{tree,macro,
               {attr,7,[],none},
               {macro,{tree,variable,{attr,7,[],none},'MODULE'},none}}},
 [{erl_syntax,concrete,1,[{file,"erl_syntax.erl"},{line,7330}]},
  {unused_record_fields,'-find_record_definition/2-fun-0-',2,
                        [{file,"/Users/fernandobenavides/Projects/NextRoll/rebar3_hank/src/rules/unused_record_fields.erl"},
                         {line,110}]},
  {lists,search,2,[{file,"lists.erl"},{line,1412}]},
  {unused_record_fields,result,4,
                        [{file,"/Users/fernandobenavides/Projects/NextRoll/rebar3_hank/src/rules/unused_record_fields.erl"},
                         {line,88}]},
  {unused_record_fields,'-do_analyze/2-lc$^4/1-2-',4,
                        [{file,"/Users/fernandobenavides/Projects/NextRoll/rebar3_hank/src/rules/unused_record_fields.erl"},
                         {line,52}]},
  {unused_record_fields,'-analyze/2-lc$^0/1-0-',1,
                        [{file,"/Users/fernandobenavides/Projects/NextRoll/rebar3_hank/src/rules/unused_record_fields.erl"},
                         {line,19}]},
  {hank,'-analyze/4-lc$^5/1-5-',3,
        [{file,"/Users/fernandobenavides/Projects/NextRoll/rebar3_hank/src/hank.erl"},
         {line,26}]},
  {hank,analyze,4,
        [{file,"/Users/fernandobenavides/Projects/NextRoll/rebar3_hank/src/hank.erl"},
         {line,26}]}]}