Adds a new code style rule which checks if imports are from the global namespace.
Invalid
<?php
namespace Foo;
use DateTimeImmutable;
use function count;
use const M_PI;
if (count($x)) {
/** @var DateTimeImmutable $d */
$d = new DateTimeImmutable();
$p = M_PI;
}
Valid
<?php
namespace Foo;
if (\count($x)) {
/** @var \DateTimeImmutable $d */
$d = new \DateTimeImmutable();
$p = \M_PI;
}
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