fix(@angular/build): prevent IIFE wrapper interleaving for adjacent c… #10816

Job	Run time
build	3m 47s
build-e2e-windows	4m 12s
lint	2m 20s
publish-snapshots	2m 34s
Browser Compatibility Tests	2m 33s
test	2m 34s
e2e-windows (24, webpack, 3)	1m 58s
e2e-windows (24, esbuild, 3)	1m 58s
e2e-windows (24, esbuild, 1)	2m 0s
e2e-windows (24, esbuild, 0)	2m 0s
e2e-windows (24, esbuild, 4)	2m 0s
e2e-windows (24, webpack, 4)	2m 0s
e2e-windows (24, webpack, 5)	1m 56s
e2e-windows (24, webpack, 1)	1m 57s
e2e-windows (24, webpack, 2)	1m 45s
e2e-windows (24, esbuild, 5)	1m 57s
e2e-windows (24, esbuild, 2)	1m 56s
e2e-windows (24, webpack, 0)	1m 56s
e2e-package-managers	1s
e2e-snapshots	1s
e2e	1s
	41m 26s

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