Feature/disallow debug functions #84

Job	Run time
Coding Standard & Static Analysis	31s
testsuite-linux (8.4, highest)	41s
testsuite-linux (8.1, highest)	1m 14s
testsuite-linux (8.3, highest)	57s
testsuite-linux (8.1, lowest)	41s
testsuite-linux (8.2, highest)	45s
	4m 49s

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