Use reflection for specs 2 #86

Job	Run time
Prepare the run	5s
alpine-linux-x64	0s
docs / build (debug)	1m 5s
linux-cross-compile / build (aarch64)	3m 56s
linux-x64 / build (debug)	1m 9s
linux-x64-hs-minimal / build (debug)	37s
linux-cross-compile / build (arm)	3m 27s
linux-x64 / build (release)	1m 9s
linux-cross-compile / build (s390x)	3m 21s
linux-cross-compile / build (ppc64le)	4m 8s
linux-x64-hs-nopch / build (debug)	1m 1s
linux-x64-hs-optimized / build (debug)	59s
linux-cross-compile / build (riscv64)	3m 11s
linux-x64-hs-zero / build (debug)	1m 1s
linux-x86-hs / build (debug)	52s
macos-aarch64 / build (debug)	1m 15s
macos-x64 / build (debug)	1m 31s
linux-x86-hs / build (release)	1m 38s
macos-aarch64 / build (release)	1m 26s
macos-x64 / build (release)	1m 30s
windows-aarch64 / build (debug)	2m 4s
windows-aarch64 / build (release)	2m 56s
windows-x64 / build (debug)	3m 7s
windows-x64 / build (release)	1m 55s
linux-x64	0s
macos-aarch64	0s
macos-x64	0s
windows-x64	0s
	43m 23s

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