Fix the following errors when running recent phpunit:
Message: Too few arguments to function PHPUnit\Framework\TestCase::__construct(), 0 passed in
dolibarr/test/phpunit/DateLibTzFranceTest.php on line 63 and exactly
1 expected Location: phar:///usr/share/webapps/bin/phpunit.phar/phpunit/Framework/TestCase.php:265
Indeed, the old constructor had an optional $name='' parameter but the
new constructor reads like this:
public function __construct(string $name)
and the parameter is now mandatory.
The global variables are stored in $this, and in particular $db is used
through this mean. But $this->savdb is supposed to be the immutable
global state that is stored at the test class instantiation and restored
at the beginning of each test.
For $this->savdb, I don't think any consequences are created by this,
since the object is saved by each test anyway and the $db object is
mostly a query object within a transaction, but future change could use
this to inject a different stateful $db object to trace some behaviour
in the test for instance, so make sure the correct one is used.
