refactor(@schematics/angular): decompose transformSpies into modular … #10448

Job	Run time
lint	36s
build-e2e-windows	47s
build	36s
Browser Compatibility Tests	1s
test	1s
publish-snapshots	1s
e2e-package-managers	1s
e2e-snapshots	1s
e2e	1s
e2e-windows	1s
	2m 6s

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