Build/Test Tools: Reworks `Tests_Option_Option::test_bad_option_names()` into data provider.

The existing tests were running multiple functions through a `foreach()`. If any test failed, it would bail out and not test against the other scenarios.

This commit:

- Moves the scenarios to a data provider with named data sets, i.e. to ensure all scenarios are run and tested regardless if any fail.
- Splits each function under test into individual test methods.
- Adds a float scenario.
- Adds method visibility modifiers.

Follow-up to [25002].

Props jrf, hellofromTonya, pbearne.
See #53635.
Built from https://develop.svn.wordpress.org/trunk@51817


git-svn-id: http://core.svn.wordpress.org/trunk@51424 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.9-alpha-51816';
+$wp_version = '5.9-alpha-51817';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.