Cleanup for Doxytag generation #52

Job	Run time
android (-O0)	1s
macosx (clang++, -O0)	21s
android (-O3 -flto -DNDEBUG)	1s
linux (g++, -O0)	39s
macosx (clang++, -O3 -flto -DNDEBUG)	22s
icpx (-O0)	38s
linux (clang++, -O0)	40s
macosx (clang++, -O3 -flto -DNDEBUG -stdlib=libc++, -stdlib=libc++)	23s
icpx (-O3 -flto -DNDEBUG)	38s
linux (clang++, -O3 -flto -DNDEBUG)	37s
macosx (clang++, -O0 -stdlib=libc++, -stdlib=libc++)	20s
wasm (-sNO_DISABLE_EXCEPTION_CATCHING -O0)	37s
linux (g++, -O3 -flto -DNDEBUG)	38s
wasm (-sNO_DISABLE_EXCEPTION_CATCHING -O3 -flto -DNDEBUG)	38s
linux (clang++, -O3 -flto -DNDEBUG -stdlib=libc++, -stdlib=libc++)	39s
windows (Debug)	33s
linux (clang++, -O0 -stdlib=libc++, -stdlib=libc++)	38s
windows (-T ClangCL, Debug)	39s
windows (Release)	33s
windows (-T ClangCL, Release)	40s
	10m 15s

Provide feedback