Source

File: wp-includes/class-wp-term-query.php

protected function populate_terms( $term_ids ) {
		$terms = array();

		if ( ! is_array( $term_ids ) ) {
			return $terms;
		}

		foreach ( $term_ids as $key => $term_id ) {
			$term = get_term( $term_id );
			if ( $term instanceof WP_Term ) {
				$terms[ $key ] = $term;
			}
		}

		return $terms;
	}