Skip to get a line in eval context

[k0kubun]

Fix for test 2 and 3 in #194.

We can't open a file named "(eval)". So byebug should skip to read its line on linetrace.

[deivid-rodriguez]

@k0kubun Looks great. Just one nitpick, can you split the assertion into a different test? Oh, and can you add a change log entry?

[deivid-rodriguez]

Mmm, I meant to split the assertion to a separate method, not a separate class and file. I'm aiming at having one file in test/commands per command in lib/byebug/commands, that's why I prefer not to have this in a separate file and keep it in the test/commands/continue_test.rb file.

Also, the change log entry is missing a "### Fixed" entry and we need a rebase.

Sorry for the trouble...

[deivid-rodriguez]

Thank you very much @k0kubun!!

[k0kubun]

Thank you for merging 😄