[Console] make parent constructor test more reliable

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Fixes   | #9186 , f2b60e9 
| Tests pass?   | yes
| license?      | MIT

It also fixes the test since f2b60e9 and improves phpdoc

The second commit improves regex performance to validate name (using possesive quantifier).

I did some basic performance tests http://3v4l.org/PuvuL
The new regex only takes 1/3 of the time compared to the old one!