[FSSDK-11114] add type test for entrypoints #1038

Job	Run time
crossbrowser_and_umd_unit_tests	6h 0m 12s
lint	1m 0s
unit_tests (16)	1m 46s
unit_tests (18)	1m 35s
unit_tests (20)	1m 25s
unit_tests (22)	1m 24s
fullstack_production_suite / test	4s
integration_tests / test	5s
lint_markdown_files / lint	51s
Coveralls coverage	3s
	6h 8m 25s

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