Add judgment type and better in REPL print debugging

[d1y]

>>> import http
>>> http.get('https://h5.m.taobao.com/ocean/privatenode/shop.html?&sellerId=50852803')
>>> fc := http.get('https://h5.m.taobao.com/ocean/privatenode/shop.html?&sellerId=50852803')
>>> println(fc)
.vrepl.v:4 `?http.Response` needs to have method `str() string` to be printable

Currently in the REPL can only be converted to str and then printed, which is very difficult. And, I want to be able to add a value function that can see all the properties, just like in python dir()

>>> import os
>>> dir(os)

I hope to solve the problem of putting the cache file under /tmp when running the file. Otherwise, the cache file will be added to git when compiling. This is too uncomfortable.

[spytheman]

About the tmp.c files: PR #1743 will make git ignore all *.tmp.c files inside this repo.

[d1y]

About the tmp.c files: PR #1743 will make git ignore all *.tmp.c files inside this repo.

run .v file and REPL runtime Will create a bunch of meaningless files.
Is creating a cache file in the current directory, which is very difficult

[spytheman]

You mean the .vrepl.v file ?

[d1y]

You mean the .vrepl.v file ?

Yes