test: fix repl-function-redefinition-edge-case

`test/known_issues/test-repl-function-redefinition-edge-case.js` had
been introduced as a part of https://github.com/nodejs/node/pull/7624
but the meat of the test became fixed in
007386ee. Despite that, the test
continued to fail since it was broken itself: there was a missing colon
in the expected output.

This commit adds the missing colon and moves the test from
`test/known_issues` to `test/parallel`.

PR-URL: https://github.com/nodejs/node/pull/11772


Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>