Presented inputs of a function run off of the screen

[nickeisenberg]

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Issue Details

Provide a clear description of the problem, including the following key
questions:

The function input descriptions will run off the screen if there are many
inputs for a function.

• What did you do?

Include steps to reproduce here.

1. In the .vimrc, I have

let g:ycm_python_binary_path = '/usr/local/bin/python3'
let g:ycm_path_to_python_interpreter='/usr/local/bin/python3'
let g:ycm_autoclose_preview_window_after_insertion = 1

3. Then open up a python script, test.py for example.
4. import numpy
5. Then do something like,
   time = numpy.linspace(
6. The inputs of numpy.linspace will appear above but they will run off the screen
   so that you can not see all of the inputs. (https://imgur.com/a/RSyjzTN)

Include description of a minimal test case, including any actual code required
to reproduce the issue.

If you made changes to vimrc_ycm_minimal, pase them here:

<contents of ycm_vimrc_minimal>

• What did you expect to happen?

Include description of the expected behaviour.
I expect the inputs to be presented in a way where they do not run
off the screen.

• What actually happened?
  The inputs ran off the screen

Include description of the observed behaviour, including actual output,
screenshots, etc.
(https://imgur.com/a/RSyjzTN)

Diagnostic data

Output of vim --version

Paste output here

Output of YcmDebugInfo

Paste output here

Output of YcmDiags

Paste output here

Output of git rev-parse HEAD in YouCompleteMe installation directory

paste output here

Contents of YCM, ycmd and completion engine logfiles

Reproduce the issue with vim -Nu /path/to/YCM/vimrc_ycm_minimal, which
enabled debug logging and other useful diagnostics. Include a link to a
gist containing all of the log files listed by :YcmToggleLogs.

OS version, distribution, etc.

Include system information here.

Output of build/install commands

Include link to a gist containing the invocation and entire output of
install.py if reporting an installation issue.

[puremourning]

It's not obvious how this can be improved and remain useful and simple in the general case. It might be possible to horizontally scroll to make the active parameter visible at least, but there's no way we will split the arguments over multiple lines or anything like that.