test(@schematics/angular): add unit tests for `addTodoComment` helper #2093

Job	Run time
list	19s
workflow (devkit-core-tests)	1m 16s
workflow (build-unit-tests)	2m 20s
workflow (modules-builder-tests)	1m 51s
workflow (build-cli)	1m 46s
workflow (devkit-core-tests-rerun)	1m 25s
	8m 57s

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