closureType, indStaticType, contextType, capabilityType, taskType, funType, tsoType,
  frameType, rtsFunType, conType, thunkType, rtsConfigType, exitCodeType,
  rtsOptsEnbledType, stgArrayType, stgByteArrayType, stgMutVarType, stgMVarType,
  hsResultType, stgTVarType, stgBCOType, stgWeakType :: FieldType
closureType       = obj stgClosure
closureType, indStaticType, contextType, capabilityType, taskType, funType, tsoType,
  frameType, rtsFunType, conType, thunkType, rtsConfigType, exitCodeType,
  rtsOptsEnbledType, stgArrayType, stgByteArrayType, stgMutVarType, stgMVarType,
  hsResultType, stgTVarType, stgBCOType, stgWeakType :: FieldType
closureType       = obj stgClosure
closureType       = obj stgClosure