Obj array renames #1908

Job	Run time
Examples Conda Py3	1m 25s
Ruff	8s
Typos	7s
Pytest Conda Py3 Intel	2m 9s
Pytest Conda Py3 POCL	2m 21s
basedpyright	1m 52s
Documentation	1m 50s
Tests for downstream project mirgecom	4s
Tests for downstream project grudge	10m 23s
Tests for downstream project meshmode	11m 23s
Tests for downstream project mirgecom_examples	5s
	31m 47s

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