Feature request: executing lines in jldoctest without a result line (like Python)

[mm3509]

Sometimes I want to test part of an object instead of the full structure. So I bind it to a variable first and then test part of it. If I write a test ending with a semicolon and an empty line next, the test passes:

```jldoctest
julia> c = (10, 20);

julia> c[1] == 10
true
```

But if I omit that empty line, as I would in a Python doc-test, then c is not defined:

```jldoctest
julia> c = (10, 20);
julia> c[1] == 10
true
```
ERROR: UndefVarError: c = (10, 20);not defined

This is similar to #452, but separate in my view.

[fredrikekre]

But that is not how it looks in the REPL?

[mm3509]

No, indeed it is not, and the Python REPL simply omits the empty line. Is the objective to show the code inside ```jldoctest as if it were typed in a REPL?

[KristofferC]

Yes, you can copy paste the code from a jldoctest straight into the REPL, including prompts and it will work (unless you are on windows, unfortunately).

[fredrikekre]

I don' think we will change this.