Add support for extended permission rules in conditional policies #601

Job	Run time
build (gcc, 3.12, 3.3)	1m 33s
build (gcc, 3.12, 3.3, test-flags-override)	1m 27s
build (gcc, 3.12, 3.3, test-debug)	1m 22s
build (gcc, 3.12, 3.3, linker-bfd)	1m 35s
build (gcc, 3.12, 3.3, linker-gold)	1m 31s
build (gcc, 3.11, 3.3)	1m 33s
build (gcc, 3.10, 3.3)	1m 37s
build (gcc, 3.9, 3.3)	1m 40s
build (gcc, 3.8, 3.3)	1m 43s
build (gcc, 3.7, 3.3)	1m 46s
build (gcc, pypy3.7, 3.3)	1m 57s
build (gcc, 3.12, 3.2)	1m 35s
build (gcc, 3.12, 3.1)	1m 28s
build (gcc, 3.12, 3.0)	1m 33s
build (gcc, 3.12, 2.7)	2m 5s
build (gcc, 3.12, 2.6)	1m 47s
build (gcc, 3.12, 2.5)	2m 27s
build (clang, 3.12, 3.3)	1m 47s
build (clang, 3.12, 3.3, test-flags-override)	1m 39s
build (clang, 3.12, 3.3, test-debug)	1m 35s
build (clang, 3.11, 3.3)	1m 37s
build (clang, 3.10, 3.3)	1m 34s
build (clang, 3.9, 3.3)	1m 43s
build (clang, 3.8, 3.3)	2m 27s
build (clang, 3.7, 3.3)	1m 52s
build (clang, pypy3.7, 3.3)	1m 57s
build (clang, 3.12, 3.2)	1m 54s
build (clang, 3.12, 3.1)	1m 41s
build (clang, 3.12, 3.0)	1m 39s
build (clang, 3.12, 2.7)	2m 22s
build (clang, 3.12, 2.6)	1m 47s
build (clang, 3.12, 2.5)	1m 52s
build (gcc, 3.12, 3.3, sanitizers)	2m 3s
	58m 8s

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