Always use the same types.Info maps
Always use the same types.Info maps

Now we are more consistent and we avoid some extra work in the first
typecheck.

name      old alloc/op   new alloc/op   delta
Reduce-4     141kB ± 0%     136kB ± 0%  -3.45%  (p=0.002 n=6+6)

name      old allocs/op  new allocs/op  delta
Reduce-4     1.29k ± 0%     1.27k ± 0%  -1.67%  (p=0.002 n=6+6)

mvdan/goreduce