==================== Proto-BCOs ====================
ProtoBCO Fat.$trModule#0 []:
   CCS_DONT_CARE GHC.Types.Module! [$trModule2_rvj $trModule4_rvl]
   bitmap:  0 []
   PUSH_G   $trModule4_rvl
   PUSH_G   $trModule2_rvj
   PACK     GHC.Types.Module 2
   ENTER
 
ProtoBCO $trModule4_rvl#0 []:
   CCS_DONT_CARE GHC.Types.TrNameS! [$trModule3_rvk]
   bitmap:  0 []
   PUSH_UBX (1) 7045152##
   PACK     GHC.Types.TrNameS 1
   ENTER
 
ProtoBCO $trModule2_rvj#0 []:
   CCS_DONT_CARE GHC.Types.TrNameS! [$trModule1_rvi]
   bitmap:  0 []
   PUSH_UBX (1) 140403554651664##
   PACK     GHC.Types.TrNameS 1
   ENTER
 
ProtoBCO Fat.t#0 []:
   CCS_DONT_CARE GHC.Types.C#! ['t'#]
   bitmap:  0 []
   PUSH_UBX (1) 't'#
   PACK     GHC.Types.C# 1
   ENTER
 
ProtoBCO Fat.a#0 []:
   CCS_DONT_CARE GHC.Types.C#! ['a'#]
   bitmap:  0 []
   PUSH_UBX (1) 'a'#
   PACK     GHC.Types.C# 1
   ENTER
 
ProtoBCO Fat.f#0 []:
   CCS_DONT_CARE GHC.Types.C#! ['f'#]
   bitmap:  0 []
   PUSH_UBX (1) 'f'#
   PACK     GHC.Types.C# 1
   ENTER