can't find: a in ./testdata/data.reject.lc:1:20:
data Data1 = Data1 a b c
                   ^
------------ trace
'Data1 :: Type
!can't find: a in ./testdata/data.reject.lc:1:20:
data Data1 = Data1 a b c
                   ^
------------ tooltips
1:6-1:11
    Type