Add support of 'random_int' and 'random_bytes' builtins (#977) #293

Job	Run time
jammy/g++/c++17/asan=off/ubsan=off	8m 47s
focal/clang++/c++17/asan=off/ubsan=on	7m 58s
focal/g++-10/c++20/asan=on/ubsan=off	9m 44s
	26m 29s

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