FED-4215 Low-hanging dart2js code side optimizations #33

Job	Run time
analyzer_plugin (2.19.6)	5m 30s
test_and_check_generated_files (2.19.6)	8m 23s
analyzer_plugin (stable)	2m 54s
test_and_check_generated_files (stable)	6m 3s
validate_analyzer (stable, ^5.13.0)	1m 4s
validate_analyzer (stable, ^6.0.0)	1m 25s
checks / analyze	53s
validate_analyzer (2.19.6, ^5.13.0)	1m 46s
checks / dependency-validator	29s
checks / format	1m 15s
validate_analyzer (stable, ^7.0.0)	1m 23s
checks / analyze-additional-checks	3s
checks / check-release-notes	7s
build / sbom	21s
checks / additional-checks (no_entrypoint_imports)	20s
Testing and Checks Completed	3s
	31m 59s

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