is_array_type should be an instance method #1945

Job	Run time
Ruff	10s
Typos	5s
basedpyright	1m 57s
Documentation	1m 49s
Tests for downstream project mirgecom	5s
Tests for downstream project mirgecom_examples	4s
Tests for downstream project meshmode	11m 23s
Tests for downstream project grudge	11m 11s
Pytest Conda Py3 Intel	2m 5s
Examples Conda Py3	1m 25s
Pytest Conda Py3 POCL	2m 34s
	32m 48s

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