Fix missing InvalidArgumentException in Database\BaseBuilder

Author: samsonasik

system/Database/BaseBuilder.php

@@ -997,7 +997,7 @@ protected function _whereIn(string $key = null, $values = null, bool $not = fals
 		{
 			if (CI_DEBUG)
 			{
-				throw new InvalidArgumentException(sprintf('%s() expects $key to be a non-empty string', debug_backtrace(0, 2)[1]['function']));
+				throw new \InvalidArgumentException(sprintf('%s() expects $key to be a non-empty string', debug_backtrace(0, 2)[1]['function']));
 			}
 
 			return $this;
@@ -1007,7 +1007,7 @@ protected function _whereIn(string $key = null, $values = null, bool $not = fals
 		{
 			if (CI_DEBUG)
 			{
-				throw new InvalidArgumentException(sprintf('%s() expects $values to be of type array or closure', debug_backtrace(0, 2)[1]['function']));
+				throw new \InvalidArgumentException(sprintf('%s() expects $values to be of type array or closure', debug_backtrace(0, 2)[1]['function']));
 			}
 
 			return $this;