Haven't figured out how to use the results of a previous expression in go-repl as part of an expression.
./go-repl
=== A simple Go eval REPL ===
go> 1+2
Kind = ptr
Type = *eval.ConstNumber
results[0] = 3
go> results[0] + 1
check error: invalid operation: results[0] + 1 (operator + not defined on interface)
go> int(results[0]) + 1
check error: cannot convert int(results[0]) to type int
go>