Add support for extended permission rules in conditional policies #600

Job	Run time
build (gcc, 3.12, 3.3)	1m 33s
build (gcc, 3.12, 3.3, test-flags-override)	1m 26s
build (gcc, 3.12, 3.3, test-debug)	1m 28s
build (gcc, 3.12, 3.3, linker-bfd)	1m 36s
build (gcc, 3.12, 3.3, linker-gold)	1m 34s
build (gcc, 3.11, 3.3)	1m 35s
build (gcc, 3.10, 3.3)	1m 33s
build (gcc, 3.9, 3.3)	1m 39s
build (gcc, 3.8, 3.3)	1m 40s
build (gcc, 3.7, 3.3)	1m 37s
build (gcc, pypy3.7, 3.3)	2m 3s
build (gcc, 3.12, 3.2)	1m 29s
build (gcc, 3.12, 3.1)	1m 37s
build (gcc, 3.12, 3.0)	1m 29s
build (gcc, 3.12, 2.7)	1m 49s
build (gcc, 3.12, 2.6)	1m 48s
build (gcc, 3.12, 2.5)	1m 43s
build (clang, 3.12, 3.3)	1m 39s
build (clang, 3.12, 3.3, test-flags-override)	1m 28s
build (clang, 3.12, 3.3, test-debug)	1m 33s
build (clang, 3.11, 3.3)	1m 37s
build (clang, 3.10, 3.3)	1m 38s
build (clang, 3.9, 3.3)	1m 39s
build (clang, 3.8, 3.3)	1m 44s
build (clang, 3.7, 3.3)	1m 41s
build (clang, pypy3.7, 3.3)	2m 2s
build (clang, 3.12, 3.2)	1m 39s
build (clang, 3.12, 3.1)	1m 33s
build (clang, 3.12, 3.0)	1m 37s
build (clang, 3.12, 2.7)	1m 56s
build (clang, 3.12, 2.6)	1m 48s
build (clang, 3.12, 2.5)	1m 48s
build (gcc, 3.12, 3.3, sanitizers)	2m 7s
	55m 8s

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