98     '0x0000000000000000': {signed: '0'},  property
99     '0x0000000000000001': {signed: '1'},  property
100     '0x00000000ffffffff': {signed: '4294967295'},  property
101     '0x0000000100000000': {signed: '4294967296'},  property
102     '0xffffffffffffffff': {signed: '-1', unsigned: '18446744073709551615'},  property
104         {signed: '-9223372036854775808', unsigned: '9223372036854775808'},  property
106         {signed: '-9223372034707292160', unsigned: '9223372039002259456'},  property
107     '0x01b69b4bacd05f15': {signed: '123456789123456789'},  property
109         {signed: '-123456789123456789', unsigned: '18323287284586094827'},  property
111         {signed: '-6510615555426900571', unsigned: '11936128518282651045'},  property
112     '0x5a5a5a5a5a5a5a5a': {signed: '6510615555426900570'},  property
114         {signed: '-4294967296', unsigned: '18446744069414584320'},  property
145       const signed = Int64.fromDecimalString(decimals.signed);  constant