addTraitAlias error, Invalid Alias: Method name already exists on this class

[titrxw]

laminas-code/src/Generator/TraitUsageGenerator.php

Line 259 in 17fd2af

throw new Exception\InvalidArgumentException('Invalid Alias: Method name already exists on this class.');

laminas-code/src/Generator/TraitUsageGenerator.php

Line 410 in 17fd2af

throw new Exception\RuntimeException(sprintf(

trait TestTrait {
	public function instance() {

	}
}

class Test {
	use TestTrait {
		instance as InstanceAs;
	}
}

$classGenerator = ClassGenerator::fromReflection(new ClassReflection(Test::class));
$classGenerator->addTrait(TestTrait::class);
$classGenerator->addTraitAlias([
	'traitName' => 'TestTrait',
	'method' => 'instance'
], 'InstanceAs');

Trigger an exception. The exception message is

PHP Fatal error:  Uncaught Laminas\Code\Generator\Exception\InvalidArgumentException: Invalid Alias: Method name already exists on this class.