Make bcround pure (#5499)

Co-authored-by: Vincent Langlet <vincentlanglet@hotmail.fr>

Author: still-dreaming-1

bin/functionMetadata_original.php

@@ -64,6 +64,7 @@
 	'bcdiv' => ['hasSideEffects' => false],
 	'bcmod' => ['hasSideEffects' => false],
 	'bcmul' => ['hasSideEffects' => false],
+	'bcround' => ['hasSideEffects' => false],
 	// continue functionMap.php, line 424
 	'chgrp' => ['hasSideEffects' => true],
 	'chmod' => ['hasSideEffects' => true],

resources/functionMetadata.php

@@ -776,6 +776,7 @@
 	'bcmul' => ['hasSideEffects' => false],
 	'bcpow' => ['hasSideEffects' => false],
 	'bcpowmod' => ['hasSideEffects' => false],
+	'bcround' => ['hasSideEffects' => false],
 	'bcsqrt' => ['hasSideEffects' => false],
 	'bcsub' => ['hasSideEffects' => false],
 	'bin2hex' => ['hasSideEffects' => false],