refactor(@angular/build): use `t.buildUndefinedNode` instead of `Scop… #3444

Job	Run time
list	24s
workflow (modules-builder-tests)	1m 54s
workflow (devkit-core-tests-rerun)	1m 36s
workflow (build-unit-tests)	2m 23s
workflow (build-cli)	1m 46s
workflow (devkit-core-tests)	1m 28s
	9m 31s

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