fix(tohtml): support ranges again #514

Job	Run time
clang-analyzer	8m 41s
build-types	2m 25s
ubuntu asan clang unittest	2m 51s
lint	4m 1s
ubuntu asan clang functionaltest	14m 32s
ubuntu asan clang oldtest	6m 46s
with-external-deps	1m 26s
ubuntu tsan clang functionaltest	16m 50s
ubuntu gcc unittest	2m 31s
ubuntu gcc functionaltest	7m 6s
ubuntu gcc oldtest	3m 3s
macos 12 clang unittest	2m 53s
macos 12 clang functionaltest	10m 1s
macos 12 clang oldtest	6m 12s
macos clang unittest	2m 0s
macos clang functionaltest	6m 38s
macos clang oldtest	3m 33s
ubuntu puc-lua gcc functionaltest	6m 51s
ubuntu puc-lua gcc oldtest	3m 1s
windows / windows (functional)	13m 44s
windows / windows (old)	8m 52s
	2h 13m 57s

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