clang-tidy: fix bugprone-reserved-identifier (API changes) #127

Job	Run time
coverity-test	0s
build-test (ubuntu-20.04, gcc)	1m 10s
test-coverage	1m 9s
scanbuild	1m 8s
build-test (ubuntu-20.04, clang)	1m 9s
test-fuzz	1m 3s
build-test (fedora-32, gcc)	1m 14s
build-test (fedora-32, clang)	1m 6s
test-mbedtls (ubuntu-20.04)	2m 54s
build-test (opensuse-leap, gcc)	1m 10s
test-no-crypto-build	1m 19s
test-mbedtls (ubuntu-22.04-mbedtls-3.1)	2m 59s
test-tcti-config	1m 17s
build-test (opensuse-leap, clang)	1m 12s
build-test (ubuntu-22.04, gcc)	1m 6s
build-test (ubuntu-22.04, clang)	1m 7s
build-test (alpine-3.15, gcc)	1m 22s
build-test (alpine-3.15, clang)	1m 23s
	23m 48s

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