Add parse_error_t. #441

Job	Run time
linux (g++-10, Debug)	5m 22s
linux (g++-10, Release)	6m 24s
linux-clang-extra (-fno-rtti, Debug)	5m 40s
linux-gcc-extra (-fno-rtti, Debug)	5m 17s
linux (g++-11, Debug)	5m 16s
linux-clang-extra (-fno-rtti, Release)	6m 51s
linux-old (g++-10, Debug)	5m 58s
linux (g++-11, Release)	6m 16s
linux-clang-extra (-fno-exceptions, Debug)	5s
linux-gcc-extra (-fno-rtti, Release)	6m 33s
linux-old (g++-10, Release)	6m 35s
linux-clang-extra (-fno-exceptions, Release)	7s
linux-gcc-extra (-fno-exceptions, Debug)	3m 11s
linux (g++-12, Debug)	6m 19s
linux-old (g++-11, Debug)	20s
linux (g++-12, Release)	7m 21s
linux-gcc-extra (-fno-exceptions, Release)	3m 49s
linux-clang-extra (-fms-extensions, Debug)	5m 21s
linux-old (g++-11, Release)	58s
linux (g++-13, Debug)	6s
linux-clang-extra (-fms-extensions, Release)	7m 0s
linux-old (clang++-10, Debug)	5m 23s
linux (g++-13, Release)	3s
linux-old (clang++-10, Release)	7m 12s
linux (clang++-13, Debug)	5m 17s
linux-old (clang++-11, Debug)	5m 16s
linux (clang++-13, Release)	7m 3s
linux-old (clang++-11, Release)	8m 4s
linux (clang++-14, Debug)	5m 18s
linux-old (clang++-12, Debug)	5m 22s
linux (clang++-14, Release)	7m 17s
linux-old (clang++-12, Release)	8m 19s
linux (clang++-15, Debug)	5m 15s
linux (clang++-15, Release)	7m 5s
	2h 51m 43s

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