test_runner: support custom message for expectFailure #2831

Job	Run time
Build slim tarball	1m 33s
x86_64-linux: with shared libraries	2h 0m 44s
aarch64-linux: with shared libraries	1h 24m 10s
x86_64-darwin: with shared libraries	1h 2m 7s
aarch64-darwin: with shared libraries	2h 26m 45s
	6h 55m 19s

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