Here are the data structures with brief descriptions:

[detail level 123]

AST
AstNode
varinfo_t
AstModule
AST_INTERNAL
ProcessGenerator
generate
ILANG_BACKEND
ILANG_FRONTEND
Minisat
RegionAllocator
Heap
MkIndexDefault
IntMap
IntSet
Hash
Equal
DeepHash
DeepEqual
Map
Pair
Option
OptionLt
IntRange
Int64Range
DoubleRange
DoubleOption
IntOption
Int64Option
StringOption
BoolOption
StreamBuffer
Queue
SimpSolver
ClauseDeleted
ElimLt
Solver
ShrinkStackElem
VarData
VarOrderLt
Watcher
WatcherDeleted
Lit
MkIndexLit
VMap
LMap
LSet
lbool
Clause
ClauseAllocator
ClauseIterator
TrailIterator
OccLists
CMap
CRefHash
LessThan_default
vec
OutOfMemoryException
RTLIL
IdString
char_ptr_cmp
compare_ptr_by_name
destruct_guard_t
sort_by_name_id
sort_by_name_str
sort_by_id_str
ObjIterator
ObjRange
Const
Selection
Monitor
Design
Module
Wire
Memory
Cell
SigChunk
SigBit
SigSpecIterator
SigSpecConstIterator
SigSpec
CaseRule
SwitchRule
SyncRule
Process
SubCircuit
SolverWorker
DiBit
DiCache
DiEdge
DiNode
GraphData
NodeSet
Graph
BitRef
Edge
Node
Port
PortBit
Solver
MineResult
MineResultNode
Result
ResultNodeMapping
txt2tikztiming
VERILOG_FRONTEND
Yosys
LibertyAst
LibertyParser
abc_output_filter
AbcPass
AddPass
AlumaccPass
AlumaccWorker
alunode_t
maccnode_t
Backend
BigInteger
BigUnsigned
BigUnsignedInABase
bit_ref_t
BitPatternPool
BlifBackend
BlifDumper
BlifDumperConfig
blockgeom_t
BruteForceEquivChecker
BtorBackend
BtorDumper
BtorDumperConfig
CdPass
cell_mapping
CellType
CellTypes
CleanPass
ConnectPass
ConnwrappersPass
ConnwrappersWorker
portdecl_t
ConstEval
CopyPass
CountBitUsage
CoverPass
DeletePass
DesignPass
Dff2dffePass
Dff2dffeWorker
dff_map_bit_info_t
dff_map_info_t
DfflibmapPass
DumpPass
EchoPass
EdifBackend
equiv_bit_t
EvalPass
ExposePass
ExtractPass
ezMiniSAT
ezSAT
_V
ezSATbit
ezSATvec
FindReducedInputs
FlattenPass
FreducePass
FreduceWorker
Frontend
FsmData
transition_t
FsmDetectPass
FsmExpand
FsmExpandPass
FsmExportPass
FsmExtractPass
FsmInfoPass
FsmMapPass
FsmOpt
FsmOptPass
FsmPass
FsmRecodePass
gate_t
generate_port_decl_t
HelpPass
HierarchyPass
HilomapPass
IlangBackend
IlangFrontend
IntersynthBackend
IopadmapPass
LibertyFrontend
log_cmd_error_exception
LogPass
LsPass
Macc
port_t
MaccmapPass
MaccmapWorker
MemoryCollectPass
MemoryDffPass
MemoryMapPass
MemoryMapWorker
MemoryPass
MemorySharePass
MemoryShareWorker
MemoryUnpackPass
MiterPass
ModIndex
PortInfo
SigBitInfo
ModWalker
PortBit
MyPass
NumberlikeArray
OptCleanPass
OptConstPass
OptMuxtreePass
OptMuxtreeWorker
bitDef_t
bitinfo_t
knowledge_t
muxinfo_t
portinfo_t
OptPass
OptReducePass
OptReduceWorker
OptRmdffPass
OptSharePass
OptShareWorker
CompareCells
Pass
pre_post_exec_state_t
PerformanceTimer
PerformReduction
PluginPass
ProcArstPass
ProcCleanPass
ProcDffPass
ProcInitPass
ProcMuxPass
ProcPass
ProcRmdeadPass
reduceDB_lt
RenamePass
SatGen
SatHelper
ModelBlockInfo
SatPass
ScatterPass
SccPass
SccWorker
ScriptPass
SelectPass
SetattrPass
SetparamPass
SetundefPass
SetundefWorker
setunset_t
SHA1
SharePass
ShareWorker
ShareWorkerConfig
ShellPass
ShowPass
ShowWorker
net_conn
SigMap
bitDef_t
shared_bit_data_t
SigPool
bitDef_t
SigSet
bitDef_t
SimplemapPass
SpiceBackend
SplicePass
SpliceWorker
SplitnetsPass
SplitnetsWorker
stackmap
statdata_t
StatPass
StubnetsPass
SubCircuitSolver
SubmodPass
SubmodWorker
SubModule
wire_flags_t
SynthPass
SynthXilinxPass
TechmapPass
TechmapWorker
TechmapWireData
TeePass
Test1Pass
Test2Pass
TestAbcloopPass
TestAutotbBackend
TestCellPass
token_t
TopoSort
TraceMonitor
TracePass
VerificPass
VerilogBackend
VerilogDefaults
VerilogFrontend
Vhdl2verilogPass
VlogHammerReporter
WireInfo
WireInfoOrder
WreduceConfig
WreducePass
WreduceWorker
WriteFileFrontend
xorshift128
yy_buffer_state
yy_trans_info
yyalloc
YYSTYPE