fix: replace IsEqual with Equal #3949

Job	Run time
build (amd64, gcc)	39s
build (arm64, aarch64-linux-gnu-gcc, g++-aarch64-linux-gnu)	1m 21s
cleanup-runs	11s
install-tparse	14s
split-test-files	13s
test-cosmovisor	2m 35s
tests (00)	3m 40s
test-race (00)	3m 41s
tests (01)	4m 30s
test-race (01)	3m 7s
tests (02)	4m 58s
test-race (02)	2m 0s
tests (03)	3m 35s
test-race (03)	2m 14s
upload-coverage-report	23s
	33m 21s

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