fix(@schematics/angular): generate guards with a dash type separator #1460

Job	Run time
lint	2m 8s
build	9s
e2e_windows (windows-2025, 22, npm, 2)	25s
e2e_windows (windows-2025, 22, npm, 1)	31s
e2e_windows (windows-2025, 22, npm, 5)	58s
e2e_windows (windows-2025, 22, npm, 3)	37s
e2e_windows (windows-2025, 22, esbuild, 0)	47s
e2e_windows (windows-2025, 22, npm, 4)	36s
e2e_windows (windows-2025, 22, npm, 0)	30s
e2e_windows (windows-2025, 22, esbuild, 4)	1m 5s
e2e_windows (windows-2025, 22, esbuild, 2)	24s
e2e_windows (windows-2025, 22, esbuild, 1)	32s
e2e_windows (windows-2025, 22, esbuild, 3)	57s
e2e_windows (windows-2025, 22, esbuild, 5)	36s
e2e	0s
e2e-snapshots	0s
publish-snapshots	0s
e2e-package-managers	0s
Browser Compatibility Tests	0s
test	0s
	10m 15s

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