Support GetFileSize API in FSRandomAccessFile #5435

Job	Run time
check-format-and-targets	41s
build-fuzzers	9m 5s
build-linux	17m 38s
build-linux-make-with-folly	28m 32s
build-linux-release	14m 27s
build-linux-cmake-with-folly-lite-no-test	7m 43s
build-linux-cmake-with-benchmark	19m 34s
build-linux-release-rtti	12m 34s
build-linux-encrypted_env-no_compression	15m 59s
build-examples	10m 45s
build-linux-cmake-with-folly-coroutines	32m 1s
build-linux-cmake-with-folly	27m 49s
build-linux-cmake-mingw	12m 28s
build-linux-make-with-folly-lite-no-test	9m 58s
build-linux-clang-13-no_test_run	7m 50s
build-windows-vs2019	56m 9s
build-linux-mini-crashtest	30m 24s
build-linux-java-pmd	12m 4s
build-linux-unity-and-headers	13m 0s
build-linux-gcc-11-no_test_run	10m 15s
build-macos-cmake (true)	37m 28s
build-macos-cmake (false)	48m 5s
build-linux-arm	10m 48s
build-linux-static_lib-alt_namespace-status_checked	19m 36s
build-linux-java	14m 36s
build-linux-clang10-ubsan	17m 32s
build-linux-gcc-10-cxx20-no_test_run	10m 3s
build-macos	19m 4s
build-linux-java-static	13m 49s
build-macos-java	14m 35s
build-macos-java-static-universal	20m 24s
build-linux-clang-no_test_run	12m 47s
build-macos-java-static	23m 44s
build-linux-gcc-8-no_test_run	9m 7s
build-linux-clang10-asan	15m 56s
build-linux-clang10-clang-analyze	18m 3s
build-linux-clang13-mini-tsan	21m 55s
	11h 16m 28s

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