add TaggedExpression #3298

Job	Run time
Documentation	1m 35s
Conda Examples	1m 58s
Tests for downstream project arraycontext	2m 28s
Tests for downstream project Firedrake	18m 51s
Tests for downstream project meshmode	10m 15s
Mypy	1m 27s
Tests for downstream project grudge	10m 40s
Pylint	1m 36s
Tests for downstream project pytential	54m 29s
Conda Pytest (ubuntu-latest)	3m 55s
Tests for downstream project pytato	6m 13s
Conda Pytest with Intel CL	3m 54s
Conda Pytest (macos-latest)	3m 40s
Conda Pytest without arg check	3m 55s
Conda Pytest Twice (for cache behavior)	5m 16s
Ruff	6s
Typos	3s
Validate CITATION.cff	8s
	2h 10m 29s

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